If God exists, not seeking God must be the gravest error imaginable. If one decides to sincerely seek for God and doesn't find God, the lost effort is negligible in comparison to what is at risk in not seeking God in the first place.
Those great efforts of intellect, upon which the mind sometimes touches, are such that it cannot maintain itself there. It only leaps to them, not as upon a throne, forever, but merely for an instant.
