Actually I know about this from one of Sadhakas. Chinthamani mantra, that is very powerful mantra.It is about sakthi. if we chanting 108 times corretly, with in three days ,we feel that that mantras affect in our whole body and that mantra protect us. But the main thing is chanting is not proper-- then our ila,pingala,susumana nadi becames problem.i don't know more about this.