Dear Rawn, >> They are based upon the techniques learned in the Physical section of Step Three, so yes, one must have mastered the relevant exercises before working with the Appendix. For example, in order to impregnate a room you must have first mastered the exercises on the accumulation of the Vital Energy within the whole body (but not necessarily within the individual organs). << Thanks. I was fairly certain that was the case. Just wanted to double check. All Will Go Well, --Alan