Highest vehicle (Taoism)

This is the ineffable way of supreme ultimate reality. The most developed people can practice the subtlety of this supreme vehicle and, when accomplishment is fulfilled, character is well developed and the practitioner transcends all at once to completion. He is physically and spiritually sublimated and merges with the Tao in reality. The cauldron is cosmic space, the furnace is the absolute. The foundation of the elixir pill is clear serenity, its matrix nondoing. Lead is essence, mercury life. Concentration is water, insight is fire, the mixing of the two is controlling desire and anger. Combining of metal and wood is the unification of essence and sense, cleaning the mind is bathing. Maintenance of sincerity and settling the will is stabilization. The three essentials are discipline, concentration and insight, the mysterious pass is the centre. Clarifying the mind is miraculous experience, seeing the essence of mind is crystallization. The spiritual embryo is the merging of the three bases in one, completion of the elixir pill is unification of essence and life. Release from the matrix is having a body outside the body. Breaking through space is perfect attainment.