Parameters for learning the Secrets of the Merkava. The Warning, the Four who entered the Pardes. Not everyone can accomplish a Merkava ascent (descent). One must have a natural personality that is essentially intuitive, psychic, clairvoyant and telepathic. There are actual psychological and astral dangers practicing that which one is unprepared to experience. Numerous examples and explanations are discussed. The introduction into the infamous story of the Four who entered the Pardes, and the different fate that each faced. Lesson 28 will discuss the story in detail.