Atheists, what are the most convincing theist arguments you heard of?

[Neo-Scholastic]

After those fleeting moments of numinous insight, sober reflection does not ask if those experiences are real, for that is to deny one's own reality; but rather, what they mean and live fully by rationally incorporating them into one's life.

Bullshit. Applying appropriate levels of skepticism to personal experience is a sign that you accept your human experience for what it is, flawed and imperfect. Anything else is a denial of what we know about the human condition. To be swayed by the numinous to Godly conclusions is just ignoring our greater knowledge of how such experiences fool us. That's the real denial.

I agree that people should, as you say, apply an appropriate level of skepticism. Indeed we are only human – prone to error and living in uncertainty. And as I said, YMMV. If your need for certainty is such that you feel compelled to question everything, including your own consciousness, then that is your path and I wish you only the best. For my part, I take most things as they appear to be until shown otherwise, have good reason to suppose otherwise, or unless they affect my life enough to make me question my instincts, everyday experience, and the general consensus of history and human experience.