Matt Damon gushes about fatherhood: 'My whole life opened up when I became a dad'

Matt Damon on Fatherhood: 'My Whole Life Opened Up When I Became a Dad'

Matt Damon is known for being a doting dad -- he even recently had a family day at Disneyland for his daughter Gia's seventh birthday -- and the father of four is opening up to ET about how much his kids have changed him.

ET caught up with the 44-year-old actor at the grand opening of trainer Jason Walsh's Rise Nation Fitness Studio in West Hollywood, where he revealed that being a dad makes him "feel really lucky."

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"I think everything changes in little wonderful ways," he told ET. "My whole life opened up when I became a dad."

"I'm very much on the receiving end of all the good stuff," he added.

Damon has an excellent partner in parenting in his wife of almost a decade, Luciana Barroso, and after all these years together, The Martian star is still gushing over her.

It was love at first sight for the pair -- even if Damon still isn't sure he believes in that sort of thing. "She definitely struck me. It was like the room lit up or something," he said of the moment he met his wife. "I don't go in for that kind of thing, but what can I say? It happened to me."

Photos of Matt Damon from throughout his career:

26 PHOTOS
Matt Damon
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Matt Damon gushes about fatherhood: 'My whole life opened up when I became a dad'
HOLLYWOOD, CA - NOVEMBER 07: Actor Matt Damon attends the 'Project Greenlight' event at Boulevard3 on November 7, 2014 in Hollywood, California. (Photo by Jason LaVeris/FilmMagic)
Matt Damon, second from left, in "Good Will Hunting."
Matt Damon with Gretchen Mol in "Rounders."
Matt Damon with Minnie Driver in "Good Will Hunting."
Matt Damon in "The Talented Mr. Ripley."
Matt Damon in "The Informant."
Matt Damon in "The Informant."
Morgan Freeman with Matt Damon in "Invictus."
HOLLYWOOD, CA - NOVEMBER 07: Actors Matt Damon and Ben Affleck attend the 'Project Greenlight' event at Boulevard3 on November 7, 2014 in Hollywood, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - OCTOBER 08: Matt Damon and Luciana Barroso with his mother Nancy Carlsson-Paige are seen on October 08, 2014 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
LOS ANGELES, CA - SEPTEMBER 29: Matt Damon seen at LAX on September 29, 2014 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)
VENICE, ITALY - SEPTEMBER 29: (L-R) Matt Damon and Luciana Barroso sighting at Marco Polo Airport on September 29, 2014 in Venice, Italy. (Photo by Ernesto Ruscio/GC Images)
US actor Matt Damon boards a taxi boat at the Cipriani hotel on September 27, 2014 in Venice where US actor George Clooney and British fiancee, Amal Alamuddin celebrate their wedding. George Clooney has said goodbye to bachelorhood in Venice with a stag party at his favourite restaurant with Hollywood chums, and was gearing up for a day of glamourous pre-wedding celebrations. The actor had swept into the floating city yesterday with his British fiancee Amal Alamuddin on a watertaxi dubbed 'Amore', zipping up the Grand Canal to cheers from fans at the start of nuptials set to draw out over the weekend. AFP PHOTO / ANDREAS SOLARO (Photo credit should read ANDREAS SOLARO/AFP/Getty Images)
NEW YORK, NY - SEPTEMBER 23: Actor and co-founder of Water.org Matt Damon speaks at the Clinton Global Initiative (CGI), on September 23, 2014 in New York City. The annual meeting, established in 2005 by President Clinton, convenes global leaders to discuss solutions to world problems. (Photo by John Moore/Getty Images)
LOS ANGELES, CA - JUNE 27: Matt Damon is seen in Los Angeles on June 27, 2014 in Los Angeles, California. (Photo by Pixplus/Bauer-Griffin/GC Images)
BOSTON, MA - JUNE 10: Matt Damon is seen at Boston Logan airport on June 10, 2014 in Boston, Massachusetts. (Photo by Stickman/Bauer-Griffin/GC Images)
BOSTON, MA - JUNE 10: Actor Matt Damon attends the Mass General Hospital Cancer Center's 7th annual 'the one hundred' Event at the Westin Boston Waterfront Hotel on June 10, 2014 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)
LOS ANGELES, CA - MAY 15: Matt Damon attends an NBA playoff game between the Oklahoma City Thunder and the Los Angeles Clippers at Staples Center on May 15, 2014 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
LOS ANGELES, CA - MARCH 06: Matt Damon is seen leaving Katsuya restaurant on March 06, 2014 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
PARIS, FRANCE - FEBRUARY 12: Actor Matt Damon and his wife Lucinda Damon attend the 'Monuments Men' : Premiere at Cinema UGC Normandie on February 12, 2014 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
PARIS, FRANCE - FEBRUARY 12: Matt Damon attends 'Monuments Men' Paris premiere at Cinema UGC Normandie on February 12, 2014 in Paris, France. (Photo by Julien M. Hekimian/Getty Images)
MILAN, ITALY - FEBRUARY 09: L-R Fabio Fazio, George Clooney and Matt Damon attend 'Che Tempo Che Fa' TV Show on February 9, 2014 in Milan, Italy. (Photo by Stefania D'Alessandro/Getty Images)
MILAN, ITALY - FEBRUARY 09: Matt Damon attends 'Che Tempo Che Fa' TV Show on February 9, 2014 in Milan, Italy. (Photo by Stefania D'Alessandro/Getty Images)
BERLIN, GERMANY - FEBRUARY 08: Actor Matt Damon and Luciana Barroso attend 'The Monuments Men' premiere during 64th Berlinale International Film Festival at Berlinale Palast on February 8, 2014 in Berlin, Germany. (Photo by Anita Bugge/WireImage)
BERLIN, GERMANY - FEBRUARY 08: Matt Damon attends 'The Monuments Men' press conference during 64th Berlinale International Film Festival at Grand Hyatt Hotel on February 8, 2014 in Berlin, Germany. (Photo by Luca Teuchmann/Getty Images)
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Their first romantic moment was equally as sweet. The Boston native told ET that though it wasn't their first official date, a night together while he was working in Prague was very special. "We went on a walk in Prague," he shared. "That wouldn't have been our first date, but that was the first thing we both agreed was actually more romantic than we expected -- a long walk on a warm night."

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So how will they be celebrating their 10th anniversary this December? Damon will be on the set of the next Bourne movie, which Walsh is helping him to train for.

"Hopefully they'll give me the night off so we can go get dinner," he said. "December 9 is not a great anniversary persay, because it's normally a time when everyone is working, so we usually try to figure out something fun and special to do. If I can get a couple days off I'll figure something out."

Fingers crossed!

Related - Photos of Matt Damon and his pal Ben Affleck from over the years:
13 PHOTOS
Ben Affleck and Matt Damon through the years
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Matt Damon gushes about fatherhood: 'My whole life opened up when I became a dad'
LOS ANGELES, CA - MARCH 23: Oscar winners Matt Damon (L) and Ben Affleck hold the awards they won for best original screenplay for the film 'Good Will Hunting' which the two wrote during the 70th Annual Academy Awards 23 March in Los Angeles. (Photo credit should read HAL GARB/AFP/Getty Images)
LOS ANGELES - JULY 25: Actors Ben Affleck and Matt Damon talk at the afterparty for the premiere of Universal Picture's 'The Bourne Ultimatum' at the Hollywood Palladium on July 25, 2007 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
LOS ANGELES, CA - NOVEMBER 07: Actors Matt Damon (L) and Ben Affleck attend HBO Reveals Winner of 'Project Greenlight' Season 4 at BOULEVARD3 on November 7, 2014 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
BEVERLY HILLS, CA - MARCH 27: Honoree actor Matt Damon and actor Ben Affleck speak onstage during American Cinematheque 24th Annual Award Presentation To Matt Damon at The Beverly Hilton hotel on March 27, 2010 in Beverly Hills, California. (Photo by Kevork Djansezian/Getty Images)
JIMMY KIMMEL LIVE: AFTER THE OSCARS - The 11th annual 'Jimmy Kimmel Live: After The Oscars' special airs live on Oscar Sunday, February 28, after the late local news EST/CST and at 10pm PST on ABC. (Photo by Randy Holmes/ABC via Getty Images) MATT DAMON, BEN AFFLECK
JIMMY KIMMEL LIVE: AFTER THE OSCARS - The 11th annual 'Jimmy Kimmel Live: After The Oscars' special airs live on Oscar Sunday, February 28, after the late local news EST/CST and at 10pm PST on ABC. (Photo by Randy Holmes/ABC via Getty Images) MATT DAMON, BEN AFFLECK
CULVER CITY, CA - JUNE 04: Honorees Matt Damon (L) and Ben Affleck accept the Guys Of The Decade award onstage during Spike TV's 10th Annual Guys Choice Awards at Sony Pictures Studios on June 4, 2016 in Culver City, California. (Photo by Kevin Winter/Getty Images)
CULVER CITY, CA - JUNE 04: (L-R) Actors Robert De Niro, Matt Damon and Ben Affleck attend Spike TV's 10th Annual Guys Choice Awards at Sony Pictures Studios on June 4, 2016 in Culver City, California. (Photo by Mark Davis/Getty Images for Spike TV)
CULVER CITY, CA - JUNE 04: Honorees Ben Affleck (L) and Matt Damon accept the Guys of the Decade Award onstage during Spike TV's 10th Annual Guys Choice Awards at Sony Pictures Studios on June 4, 2016 in Culver City, California. (Photo by Mark Davis/Getty Images for Spike TV)
CULVER CITY, CA - JUNE 04: Actors Ben Affleck (L) and Matt Damon attend Spike TV's 10th Annual Guys Choice Awards at Sony Pictures Studios on June 4, 2016 in Culver City, California. (Photo by Frazer Harrison/Getty Images for Spike TV)
CULVER CITY, CA - JUNE 04: Actors Matt Damon (L) and Ben Affleck attend Spike TV's 10th Annual Guys Choice Awards at Sony Pictures Studios on June 4, 2016 in Culver City, California. (Photo by Frazer Harrison/Getty Images for Spike TV)
This guy. #NationalBestFriendsDay
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