Hi Anita,
What wonderful work you are doing. I completely understand what you are saying, when you say you are not there to heal the patient. I consider what you are doing, very high level, insightful work. You couldn't be studying a better system of qigong in regards to your supporting your growth and development in this area. I believe in the future, this type of work will be more common, and also, the people in transition will be more tuned in too. As things are today, many people need help with this. A large number of people sitting in nursing homes also comes to mind, as an area where there is much work to do in improving their state of being. Sending energy to the heart is very good. Master Lin has said that everyone's soul is beautiful. The soul resides in the heart. This, for me, is felt and seen, very deeply. One can think of the heart as a mechanical organ, or an emotional center, but when you go deep, and connect to soul, there is great beauty and powerful experience. Soul to soul, our common oneness in God. I had an experiencerecently, after the level 4 retreat, while sitting in meditation, being very big, reaching out over someone in another state, and channelling light from my soul to theirs. It was an expression of love, that felt very good. I don't know what else to say about it... I offer it as a perspective on what the heart can be, as you visualize and help someone. I think that the comfort and peace you speak of can be effected at that depth of connection. The light in the soul, is of course, connected to the source too. It can be a triangulation of relations in an awareness of truth, or simply that oneness. I don't see clearing someone's heart as a physical organ, working the same way. This is hard for me to express, and I just offer my experience with hard to find words. I know, from what I feel from your post, that you are doing good work, and that you don't have to be concerned about your technique or effectiveness. You should pursue SFQ through 3 and 4, with Master Lin. Especially with this purpose you are pursuing. Level 4, in particular deals with many applicable things. It would be hard and inappropriate to try and convey the content online, aside from the fact that for me, as a student, I need to practice , and try to understand it at a higher level, not teach it at this point!
Know that we have a soul, and, a spirit. The spirit is further divided into higher and lower spirits, yin and yang. The higher, also dwell in the area of the heart. I first thought that feeding the kidneys might not be critical, but the more I think about it, it makes sense. Which further tells me you are right on track. Feeding the kidneys is key in helping the physical body. In the end of one's life, having the body strong, to process this change, would be important. This would also, I would think, help the 'spirit' of someone. The worse their physical experience in making this transition, the more drain on one's spirit. I think you are doing great. I don't have to know the specifics. I can't stress enough, how much SFQ is made for souls like you, and that you should start seeing yourself as taking the level 3 and 4 courses, with Master Lin. In the meantime, trust your instincts. You are doing really important work.
love,
gallen