Sage Tree said it very well.. Much respect
Like many others here I personally view marijuana as a meditation. Things like yoga, exercise, meditation and marijuana all render very similar responses for me. To me, they are all tools that can be used to take one's current and "normal" perspective and change it to operate in a very objective and new way. This is a vital aspect in genuine exercises in learning and experiencing. It can liberate us from our baggage and allow us to "be".
Also, while marijuana can make one feel uneasy..given the right circumstances and simple conditioning to the substance it as many here have attested can do the opposite very well. It can be very relaxing and offer a great stance of clarity.
More love, Less judging.