What Is Pessomancy?
In one form of pessomancy, the prediction is taken from an interpretation of the pebbles after they have been cast on to the ground from a bag (or something similar like a bowl). The pessomancer then looks for symbolic messages in the patterns formed by the scattered pebbles. In another method, the stones are picked out of the bag at random one at a time.
Under another method, a person asks a question of the stones and then casts them on the floor. The nearest stone is interpreted by the pessomancer to reveal the prediction.