Melissa Benoist was a real-life superhero this weekend when she joined the thousands of women, men and children who headed to Washington, D.C., on Saturday for the Women’s March.

The “Supergirl” star opened up about the “incredible” day during an interview with The Huffington Post on Build Series Monday, saying, “I don’t think I’ll ever forget it.”

“My favorite point was when we reached the White House, and everywhere you turned, whichever street you were looking down, it was just a sea of people. A sea of people with the best energy,” she continued. “The most positive place you could be. Everyone was supportive, everyone was loving each other. It was pretty amazing.”

Benoist’s protest sign was pretty amazing too, as she used her “Supergirl” status to send President Donald Trump a message.

💪#womensmarchonwashington A photo posted by Melissa Benoist (@melissabenoist) on Jan 21, 2017 at 7:43am PST

Benoist said that she tries to embrace her character Kara Danvers in her own life, pushing to be the best possible version of herself everyday.

“[Supergirl] and Superman are truth, justice, and the American way," the 28-year-old actress said. "She sets some really high standards to live up to and, playing the role, it has definitely infused itself into my life and helped me to be a stronger, braver person than I ever have been. It’s been one of the most difficult things I’ve ever done. Definitely the most difficult job, but really rewarding in that way. I love it. I love Supergirl.”

And so do we.

“Supergirl” Season 2 returns to The CW Mondays at 8 p.m. ET. Watch Melissa Benoist’s full Build Series interview below.