Those who meddle with astrologers and sorcerers (and like practices) put themselves on a collision course with God's judgment.
Many unsaved people practice astrology (i.e., horoscopes) and other unscriptural use of the signs in the heavens. Believers should reject these practices.
The God of the Bible is a God of truth. On the other hand, the Devil is the great enemy of truth. The Bible says of him, “there is no truth in him.”