Alice Buckton, who had come from England to be with the Master, asked Him about psychic forces. He told her not to tamper with psychic forces in this world. It hampers and retards the condition of the soul both in this world, and especially the world to come. These forces are real, but not to be active on this plane. The Master said that the human soul was like a child in the womb: the child had eyes, ears, hands and feet, but they were not to be used in the world of the matrix. He said that the whole purpose of that world was to prepare us for this world. Similarly, the purpose of this world is to prepare us for the next, where all these forces will then be in their proper sphere for activity.
(Earl Redman, ‘Abdu’l-Bahá in Their Midst, p. 149)