GD. said:
Here are two possibilities. One of them is he feels alright, then don't do anything.
And the second is he feels bad, and here he should take a few days off meditation, and try to circulate energy through his body as often as he can. So that way there aren't going to be any blockages. He just imagines there are ocean waves inside his body, or a tornado or something similar.
I am personally doing this when there is too much energy and it works for me, feels good and there aren't any blockages in the soul after, maybe I haven't experienced way too much energy yet, idk. Also use affirmations for a certain purpose, just so the energy doesn't go away being unused.
Most likely there are members who have other ideas. Hope your friend is well or gets well soon (as you didn't say that he's alright or not, just that he vibrated that mantra too many times).