31 minutes can get you very high. A couple of days practice can give you a  certain stimulation which is beyond explanation. Its important that the Mercury fingers are joined in this way. This is one of the most powerful mantras. There is nothing equal to it. The entire Siri Guru Granth Sahib is nothing but an explanation of this mantra. It is so strong that it elevates the self beyond duality and establishes the flow of spirit. It will make the mind so powerful that it will remove all obstacles. We can call it the magic mantra because its positive effect happens quickly and lasts a long time.