any powers like divination, astral projection, channeling, drug induced spiritual activity, meditation, and telepathy are powers achieved by being possessed with a demon. Demons have the ability to provide super strength (luke 8:26-30, the demoniac man broke chains and fetters when subdued), predict the future (acts 16:16-18, demon possessed slave woman making money through her abilities) communicate and raise spirits (1 samual 28:7-14, witch of endor raising spirits from the dead). All spiritual activity through meditation is mediumship, opening oneself up to the spirits of this world, which are demons.
Deuteronomy 18:9-14
"When thou art come into the land which Yahuah Alahika giveth thee, thou shalt not learn to do after the abominations of those nations.There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch, Or a charmer, or a consulter with familiar spirits, or a wizard, or a necromancer. For all that do these things are an abomination unto Yahuah: and because of these abominations Yahuah Alahika doth drive them out from before thee. Thou shalt be perfect with Yahuah Alahika. For these nations, which thou shalt possess, hearkened unto observers of times, and unto diviners: but as for thee, the Yahuah Alahika hath not suffered thee so to do.
You can easily tell if someone has demonic possession or if it is spiritual gifts as described by 1 Corinthians 12:8-10, because what they do or say makes you feel good it is Divine. Also people will know if they have spiritual gifts, because the spiritual gifts will make them feel good, it will never make the person with the spiritual gift feel bad. Spiritual gifts will only Exalt, it will never lower you. @CinnaSlim
I've known people who would reveal things about me and it was all bad and it was my sins and sinful desire, I knew they had something nefarious going on.
Demonic spirits can not tell the future, the best they can do is make good guesses. Fortune telling is NOT the same thing as seeing the future, seeing the future is a supernatural gift achieved through the Holy Spirit. If demons could tell the future we would be in big trouble. That slave women would have known Paul was coming before he came, there is no instance in the Bible where a demon knew Jesus, Paul, or the 12 disciples were coming before they came its ONLY after Christ appeared before them that they identified His divinity.
Endor did not raise Samuel, this is an impossibility. Demons do not operate within the divine realm, this happens all the time where a psychic will fool you into thinking you are communicating with a dead relative, and its really a demon communicating. Also, the Witch of Endor was very surprised by the appearance of Samuel, and Saul was communicating directly with Samuel, mediums are not able to let you communicate directly with any spirit. Only God can communicate directly with men, while the Holy Spirit communicates to use through dreams, visions, miracles, healing, words of wisdom, words of knowledge, faith, tongues, and discernment of spirits.
No Vodouisant or Occultist will ever tell you what happened with Samuel and Saul is possible, demonic spirits will only talk to men through a medium/possessed person never will they appear to you unless you astral project into their spirit world.
Same reason why a demon can not recreate a face, they look at us in a very distorted way. They pervert everything because they are distorted beings, sin is a distortion of everything that is good, (like a lie is a distortion of the truth) which is why a demon never does good. And good is achieved only through the Holy Spirit which is good and perfect. Any interaction with a demon through rituals, divination (such as tarot card readings), or spiritual work will bring that demon into your life. You give demons far too much credit.