The religious desire and effort of the soul to relate itself and all its interest to God and his will, is prayer in the deepest sense. This is essential prayer: uttered or unexpressed, it is equally prayer. It is the soul’s desire after God going forth in a manifestation, … the soul striving after God. This is a prayer that may exist without ceasing, consisting, as it does, not in doing or saying this or that, but in temper and attitude of the spirit.

…P. B. Brown