From Catechism of the Catholic Church
1013 ..Death is the end of man's earthly pilgrimage, of the time of grace and mercy which God offers him so as to work out his earthly life in keeping with the divine plan, and to decide his ultimate destiny. When "the single course of our earthly life" is completed,586 we shall not return to other earthly lives: "It is appointed for men to die once."587 There is no "reincarnation" after death.
From Catholic Culture with references...
THE KINGDOM OF DARKNESS AND FORBIDDEN KNOWLEDGE
"Do not go to mediums or consult fortune tellers, for you will be defiled by them. I, the Lord, am your God" (Lev. 19:31). "Should anyone turn to mediums and fortune tellers and follow their wanton ways, I will turn against such a one and cut him off from his people" (Lev. 20:6).
ASTROLOGY, HOROSCOPES ARE PAGAN CUSTOMS....Fortune tellers try to predict the future through the use of occult, magic, or superstition. It is forbidden to seek knowledge of the future by using playing cards, tarot cards, the crystal ball, the study of the hand, the stars, examining the liver of dead animals, shooting arrows, the Ouija board, or any other superstitious means.
A medium is a person who has immediate or secret knowledge either by some questionable power of his own or through the power of an evil spirit that works through him. In l Samuel chapter 3, read how King Saul consulted a medium and died the next day. I Chronicles 10:13 says that Saul died because of this.
Catholic Culture : Library : Spiritual Warfare: The Occult Has Demonic Influence
"Do not go to mediums or consult fortune tellers
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Devotion to the souls in Purgatory contains in itself all the works of mercy, which supernaturalized by a spirit of faith, should merit us Heaven. de Sales