Trust is not simply a matter of truthfulness, or even constancy. It is also a matter of amity and goodwill. We trust those who have our best interests at heart, and mistrust those who seem deaf to our concerns.
There is no way that we can understand it all. So the heart's response to that mystery is faith - a trust in the fundamental orderliness of the universe.
Wherever you go, go with all your heart.
Trust yourself, you know more than you think you do.