"spirits from other unseen realms"
Yes, there is a spirit realm in which there are angels, seraphim, cherubim, demons and Satan.
Yes, on very rare occasions God sends an angel with a message for someone on earth.
But do we interact with "spirit from other realms"? No.
"And do not let your people practice fortune-telling or sorcery, or allow them to interpret omens, or engage in witchcraft, or cast spells, or function as mediums or psychics, or call forth the spirits of the dead." - Deuteronomy 18:10-11 (NLT)