Although he wasn’t in my house, his presence was still there. And many of the life lessons SEAL taught me became part of my DNA. They were innate. I understood on a deeper level how SEAL trained my mind as much as my body. With his challenges of jumping in a frozen lake, the steam room episode, and all of the madness in between, what we were really doing was just exercising my most important muscle—my brain. Specifically, my mental toughness muscle.
