In Tantric Zen there is no rule. There is only your immediate experience.

The causal body is like DNA or RNA in that it is the coding that determines your level of evolution.

There is always going to be pain. There is always going to be pleasure. But what is not always going to be there is balance, happiness. That is a personal decision.

When you can become completely impassive in play, then you become fluid and completely unpredictable. No one knows, including yourself, what you will do next. You couldn't even explain it.

The shushumna is the tube that the kundalini passes up in the subtle body, and on one side is the ida and the other side is the pingala.

People are under the assumption that the kundalini just flows from the base of the spine up. That's not the case at all. Kundalini also flows downward.

None of this has ever been or will ever be; all is an appearance, all is an illusion. Illusions are truth. All illusions are real. We say illusion, meaning that they're shadows.