The word "amen" goes back to Hebrew roots, literally meaning "truth", and even further to the Semitic root a-m-n "to be trustworthy, confirm, support."

When we say "amen" at the end of a prayer, it doesn't need to be just a ritual. It can be an affirmation that everything we said is pure, right, and true.

For transcript and notes: Amen A Beautiful Thought