Critical listening and altered states

At WSU we gained a lot of experience with altered states. I have an advanced degree- or would, if only I had remembered to show up for the final. This question reminds me of one time when I came back to the dorm and everyone was already deep into studying altered states. They were discussing the various topics as deeply as ever, you could tell they were really getting somewhere. Only something strange, they were hearing deep philosophy, I was hearing blather. 

From this experience I conclude if you get messed up to make decisions don't be surprised when you make messed up decisions.

There is no benefit in chemical enhancement. You may be led to believe you perceive things better, but you don’t.

Your mind needs to be in an empty state, or "Wuji" ("the ultimate of nothingness") in order for the sound to communicate to you most effectively.

I cannot see how poisoning brain and body can lead to any beneficial effect in anything you do.

I love this question and how it will divide the respondents into two distinct camps.  Those who use and those who don't.  I have previously mentioned the fact that "a bit" of THC greatly improves my listening experience.  That garnered some agreement, but also the stereotypical (no pun intended) "pothead" remarks from the unenlightened.  I have to laugh when the person denigrating the use of THC is likely to be holding a glass of Scotch or wine in their hand while doing it.  Failing to realize, or except the glass of wine is simply their drug of choice.  As someone who has enjoyed the recreational use of THC for over 50 years, I feel qualified in stating it greatly enhances the listening experience.  Bear in mind I'm not talking about getting wasted.  Just as a person can have a single drink of alcohol and not consume the entire bottle, so can a person consume a small amount of THC.  Those of you who indulge will know exactly what I'm talking about when I say the listening experience can take on an almost physical pleasure when just a little high.  I am able to sink more deeply into the musical experience.  Follow in detail several instruments soloing at the same time, pick out much more detail and emotion in the playing.  Does it matter why this is happening?  Does it matter if it the THC and not my ears?  NO.  All that matters is the experience for me is enhanced and improved.  In summary,  if you haven't tried it, and I don't mean the "I tried it once so I know what it's all about" crowd, then you have no point of reference and have no right to knock it.  I'll get off my soapbox now.  ha ha