Kevin Smith Suffers 'Widow-Maker' Heart Attack During Standup Show

He took to Facebook in the overnight hours to talk about the harrowing incident, which nearly claimed his life, and what he learned by living through it.

The 47-year-old filmmaker had 100 percent blockage of his LAD (left anterior descending) artery. That's the one known as "the widowmaker," because many men die instantly when they suffer a heart attack over that blockage. "If I hadn't canceled the second show to go to the hospital, the doc said I would've died tonight," he wrote.

"For now, I'm still above ground!" Smith continued in the early Monday hours. "But this is what I learned about myself during this crisis: death was always the thing I was most terrified of in life. When the time came, I never imagined I'd ever be able to die with dignity - I assumed I'd die screaming, like my dad (who lost his life to a massive heart attack)."

Smith wrote that he was surprisingly calm in that moment, even as they were putting in the stent. "I've had a weird, wonderful career in all sorts of media, amazing friends, the best wife in the world and an incredible daughter who made me a dad. But as I stared into the infinite, I realized I was relatively content. Yes, I'd miss life as it moved on without me -- and I was bummed we weren't gonna get to make 'Jay and Silent Bob Reboot' before I shuffled loose the mortal coil. But generally speaking, I was okay with the end, if this was gonna be it."

Thankfully, it wasn't yet his time. "This is all a part of my mythology now and I'm sure I'll be facing some lifestyle changes (maybe it's time to go Vegan)," he wrote. "But the point of this post is to tell you that I faced my greatest fear tonight... and it wasn't as bad as I've always imagined it'd be. I don't want my life to end but if it ends, I can't complain. It was such a gift."

Chris Pratt, the movie star of blockbusters "Jurassic World" and "Guardians of the Galaxy," took to Twitter Monday morning to ask his followers for prayers for one of his Hollywood inspirations.