If the Zen master sees that it will cause a person to progress, he will ask that person to do a task. The task is charged with power if it's performed properly. It's a koan between yourself and the Zen Master.
Frederick LenzThe shushumna is a tube. It is an astral tube, like a reed. It runs from the base of the spine to between the eyebrows and a little bit above.
Frederick LenzMost people don't why they are born or why they die. They have no understanding of the forces in life that pull them and push them to their death and another rebirth in this or another world.
Frederick LenzThere is a big difference between the lower samadhis and the upper samadhis, like the difference between the Sierras and the Himalayas.
Frederick Lenz