Familiar Spirits! are demons who know your relatives well because they were in close contact throughout there lives... so sure they know things no one else would! which is why you except and seek more and open up a door for them to enter into your lives! this is explained in the Bible and warned about... Leviticus 19:31 — ‘Give no regard to mediums and familiar spirits; do not seek after them, to be defiled by them: I am the Lord your God.