Close Cousins

Believing is a close cousin of Hope and Faith. The all go on forever even in the face of contradictory evidence.

HOPE and FAITH spring eternal like water from a well.
They provide your mind with unlimited explanations and excuses. Perhaps why we are susceptible to paranoia.

Well of Hope (and faith).

Alternative

If you BE, you do not worry.

Que sera, sera (Wiki) - whatever will be, will be. Lyrics