It gets easier with practice. I image healing energy, and its lightining, and then there are skinnier lightining bolts that keep showing up around it. I try to hear the air getting quickly heated up with the booms that lightining makes. Lighthing is fast and hot, so imaging my body ability to heal as that makes everything well quick. I feel like I am in a nirvana state almost, like I have done alot of ginseng. Makes me feel powerful.