The Wonders of Gratitude

"Thank You" is not merely a phrase. Thank You is emuna.
And not just any emuna but knowing all the principles of
emuna. Thank You is the deepest form of truth. Thank You
is humility and submission. Thank You is the basic good
manners that every person should have. And Thank You is
also "the delight of the World to Come," that is, our delight
in the eternal world.