Quester
Part of speech: noun
Definition: A person engaged in a quest.
Seeker
Part of speech: noun
Definition: One who seeks.Especially, a religious seeker: a pilgrim, or one who aspires to enlightenment, Nirvana, Salvation, or God Realization
Example sentence: Anyone, without exception, can know God if they really want to simply by praying, by honestly telling Him that they want to know Him. He always responds to honest seekers. Jesus promised, 'All who seek, find.'