It is becoming increasingly fashionable today for seekers to dabble with the occult in the pursuit of esoteric powers and experience. However the ancient spiritual traditions discourage this – why should the seekers of truth preoccupy themselves with powers over the material plane? These practices are distractions from the real goal of trancsendent truth and they can become a source of ego (which the seeker is desires to transcend). Remember Goethe's Faust who became enslaved by these powers and Shakespeare's Macbeth whose downfall was precipitated by the three witches; both characters lost the battle with their lower self.
The deliberate pursuit of psychic powers is not favoured by sages and advanced sincere seekers. They discourage such practices deeming them an obstacle to realising oneness of being. Powers are in the realm of phenomena which are obscuring factors in self-realisation; on the whole dangerous ground to tread for those still on the way to stop the discursive activities of the mind in order to attain a one-pointed flow of awareness. In the course of spiritual practice powers may manifest spontaneously as a result of practice of concentration in previous lives. Great is the allurement of psychic powers such as knowledge of future events, understanding the language of birds or animals,spirit mediumship, clairvoyance, astsal travel, telekinesis, reading of tarot, making oneself invisible or tiny as an atom (anima), and its opposite (mahima) and many more! And great is the discernment of those who have the strength to withstand them. No doubt the acquisition and perseverance resulting in concentration which could be used on the royal road instead of by-lanes.
Acquired powers are to some extent due to a cultivation of generally available techniques and to some extent to development of an aptitude for spontaneous power that was inherent but not powerful enough to manifest without training. It is enough to say that they are not approved of by true masters. In order to seek them, a man's mind must be directed towards them, not towards spiritual liberation. Therefore they cannot lead him to Liberation. Preoccupation with them is far more likely to distract him from it; and it can do this just as effectively as preoccupation with physical wealth and power. At best they exist within the phenomenal world which we should be striving to transcend; at worst they degenerate into sorcery and magnify his ego by giving him power over others and winning their submission and adulation.