religious mystic vs worshipper

religious mystic and worshipper both are nouns.

Word	Noun	Adjective	Verb	Adverb
religious mystic	Yes	No	No	No
worshipper	Yes	No	No	No

As nouns, worshipper is a hypernym of religious mystic; that is, worshipper is a word with a broader meaning than religious mystic:

religious mystic: someone who believes in the existence of realities beyond human comprehension
worshipper: a person who has religious faith

Other hypernyms of religious mystic include believer, worshiper.

religious mystic (noun)	worshipper (noun)
someone who believes in the existence of realities beyond human comprehension	a person who has religious faith
	someone who admires too much to recognize faults