Spirit7, I have never experienced this draining feeling you describe. Like Jetay, I connect to the massive well of universal energy and call on my master(s) for guidance and their energy, so that the energy I give well be most accepted and effective.
I do not ground myself. When I connect to the universal energy I don't feel a need for any other energy. My master's energy is for guidance and to change the quality of the energy I send.
As for thinking about the guidance you receive during a healing, Master Lin says not to question it, just follow it. I never doubt the messages I get. I believe that they are the best practice for me and the person at the time I am trying to help. Afterwards, I may wonder about it, but I don't expect to understand everything, or to believe that if I see a pattern it will apply to similar situations. Beside, if I have higher guidance why use some rule I think I've discovered.

As for focusing on your heart afterwards, or on the energy flowing during your healing, remember that the energy follows where the mind leads.

The last thing I'll comment on is you connection to the emptiness. You do not loose it. It may change, it may be stronger at times than others, but you are always connected in some fashion. It is not an on / off switch, but a good, better, best relationship. Of course we all want the best.

One suggestion, IF you are concerned about a similar event in the future, is to ask you master and the universe to send energy to help your and the person (or animal, or plant, or thing) you are trying to help. I often have a thought along the lines of "Please send energy so that I can help person X, for issue Y, and to be better able to help myself and others in the future." I see this as use me as conduit, for someone, and make me a better conduit.

You are perfection.
Iam2
