One of the Boston Celtics' most physically gifted players recently discussed his experiences with mental health with ESPN's Jackie MacMullan.

Marcus Morris, who's entering his eighth NBA season, is featured in MacMullan's second installment of a ​five-part series on the ​NBA's mental health situation. Morris' candid words started with the Philadelphia native's upbringings with his twin brother, Markieff Morris, who plays for the Washington Wizards.

MacMullan mentioned that both players have told her that they've experienced battles with depression, but that only Marcus was comfortable enough to discuss them in the story.

"Honestly, I didn't feel like I could trust anybody -- not even the people in my neighborhood, who I knew my whole life," Morris said. "I said to my brother once, 'You know, this is no way to live.'"

The brothers' house burned down when they were in high school, forcing them to squeeze into their maternal grandparents' home. Morris noted that the two brothers relied on each other heavily, however, and that their lives were made easier because of it.

"Markieff was my lifeline," Marcus said. "We needed each other to make it out of there. Without him, we wouldn't be having this conversation."

Basketball was their sanctuary. They went to college at Kansas for basketball, otherwise they wouldn't have been able to afford it. When they reunited during their tenures with the Phoenix Suns, they felt whole again--until Marcus was traded to the Detroit Pistons.

His depression came back at full force, but when he arrived in Boston, he felt comfortable with general manager Danny Ainge and head coach Brad Stevens.

"We need to search and find out what makes us better. This isn't even about basketball," Marcus said.

The Morris brothers have grown to be as mentally tough as their on-court physicality in the NBA's growing effort to handle players' personal struggles.