Religious mysticism and Religious belief

Religious mysticism noun - A religion based on mystical communion with an ultimate reality.

Religious belief and religious mysticism are semantically related. In some cases you can use "Religious belief" instead a noun phrase "Religious mysticism".

Religious belief noun - A strong belief in a supernatural power or powers that control human destiny.

Religious mysticism and religious belief are semantically related. Sometimes you can replace phrase "Religious mysticism" with "Religious belief", this phrases are similar.