A glass disk approx. 2" in diameter is introduced as a scrying glass (ala crystal ball). This glass will allow you to communicate with the spirit world.
 
The disk is cleaned with a soft cloth and placed aside. Next, the Magus/Mentalist introduces a deck of playing cards, from which a spectator selects one card. The spectator is asked to place the card close to his/her mouth and to “breathe in” the essence of the card. A rather unorthodox request, the reason for which will be apparent in but a short while.
 
The card is returned to the deck, which is thoroughly mixed. The crystal is now placed on top of the deck for a few moments, then given to the spectator to hold a few inches from his/her lips.
 
Spectator is now asked to concentrate on the selected card, and when they feel they have a vision of that card in their mind, they are to exhale a long, slow, warm breath on the crystal. A ghost-like image of the selected card appears in the mist and just as mysteriously, slowly vanishes!