The mystic art among the Hebrews then was of two different kinds, either to attract an evil spirit or to be transported alive into paradise or heaven. An evil spirit was attracted by fasting and remaining for days and nights alone in burial-grounds, till the brain was maddened and infatuated, when the artificial demoniac prophesied and performed sundry miracles. The transportation to heaven or paradise was more difficult. The candidate for a tour into heaven would retire to some isolated spot, fast until the brain was maddened with delirium and the nerves excited to second sight by the loss of sleep. Then, in that state of trance, he would sit down on the ground, draw up his knees, bend down his head between them, and murmur magic spells, until, through the reversed circulation of the blood, the maddened brain, and the unstrung nerves, he would imagine that he saw the heaven opening to his inspection, palace after palace thrown widely open to his gaze, hosts of angels passing within view, until finally he imagined himself entirely removed from the earth, transported aloft into those diamond palaces on high, or, as Paul calls it, "caught up into paradise," where he heard "unspeakable words, which it is not possible for a man to utter," and the throne of God, with all the seraphim and cherubim, archangels and angels, became visible and their conversation intelligible to the enraptured and transported mystic, in a fit of hallucination, when the bewildered imagination sees objectively its own subjective phantasma, and hears from without, in supposed articulate sounds, its own silent thoughts. It requires no great stretch of the imagination to form a correct idea of the mystic eccentricities to which this awful practice must have led those who frequently indulged in it. Rabbinical mystics, like modern trance-speakers, gave vivid descriptions of the interior splendor and grand sceneries of heaven and of the conversations of angels. One of those descriptions is preserved in _Pirke Rabbi Eliezer_, and others in various fragments of the _Talmud_. Among those particularly noticed in the _Talmud_ as having been in heaven or paradise there is also Acher, or Paul, who states so himself in his Second Epistle to the Corinthians (xii.). That passage gave rise to the story of Jesus appearing in person to Paul, just as the rabbinical mystics claimed to have had frequent intercourse with the prophet Elijah, who had been transported alive to heaven.