While meditating this morning on faith, by responding to every thought or feeling that arose with: "You [God] alone I trust, thank You [God]". It became clear to me that to have faith is to just eliminate everything that is not faith: mistakes, worries, grief, guilt, ideas of control, hope, even trying to have more faith, and so forth.
So simple! This is the way to a peaceful heart ... just eliminate everything that is not Peace.
Peace on you.
