Here is an exerpt taken from The Complete Chakra System book by Dr. Andrew Greszczyszyn.
Chakra 18: Chakra 18 is the development of completion of polarities of physical and spiritual self. When chakra 18 is fully mastered the learning and completion of spirit self, without any remaining physicalness occurs.
This chakra which expands into the reality of the conscious Soruba Samadhi the next “space” between this chakra and chakra 19, is the witnessing of the complete annihilation of all that remains physically.
The yogi, lama, or monk who has developed chakra 18 without a doubt has progressed to Soruba Samadhi. He or she has mastered teleportation, levitation and bilocation. By mastering this chakra and entering Soruba no less than once, they have become as small as the atom.
The importance of Soruba Samadhi should not be understated. A conscious progression above Nirvikalpa Samadhi and self realization, it is the passage by which those who are making light body formation must pass to become one with Source.
In the upcoming course taught in Los Angeles (November 19/20, 2011) Dr Andrew Greszczyszyn, the forerunning teacher opening the doors to Soruba Samadhi in the West will teach highly acclaimed ways of mastering Soruba Samadhi. More than a course of Soruba there will be discussions and practices based on forming the light body, incoruptible golden body, and ways to prepare the self for siddhis or spiritual powers deemed divine.
Come out to Los Angeles and prepare to unlock the most powerful taught ways to induce Soruba Samadhi. Soruba Samadhi is the essence of divinity and why Siddhas and Masters have become so proficient at manifesting!
The following is the link for more information on the Los Angeles Advanced Kriya Course