Comment to Naad Brahma Practice
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One is advised not to use hallucinogens because I cannot guarantee that there will not be a backlash from nature for the usage. One way to look at this is that there is more than one way to get money out of a bank. You go through the front door and present your credentials. You could also blast your way in through the back with explosives and a gun. Either way you would get into the bank, except for the repercussions for blasting the back entry.
This is why I cannot recommend it because I have to be sure that you will have not a down side after using hallucinogens.