I have seen and heard different opinions and try to see it objectively. It's not inherently bad, or inherently good. Some people just dont know how to use it IMO. SWIM has used it plenty of times, for spiritual reasons and for recreational reasons.
Now some may say that it has no spiritual benefits. Then what inherently does? If you can learn anything from abiding in a "normal" state of consciousness, then you can learn from being in a different state of consciousness as well. And in fact, being in an altered state of consciousness allows for different viewpoints and perspectives that one wouldnt normally experience, thus allowing a better understanding of a situation or the like.
I for one believe in the benefits of altered states of consciousness, but it has to be done right.
Im sorry you have had bad experiences outhouse, but I disagree that cannabis is inherently harmful. People are stupid, and being intoxicated will only make stupid people behave more stupid most of the time, but I have known many people to be very intelligent smokers who dont engage in stupid behavior and can keep their minds on a complete focused level.
Like anything, it can be used different ways. I have experienced insights and expanded viewpoints while using it. This isnt because it inherently gives insights, its because this is the reason I used it, so this is what I got from it. And thats the trick with cannabis, whatever you use it for is what you're gonna get out of it. You wanna get high and act stupid? Then your gonna get high and act stupid. Dont expect to benefit from it. I have experienced transcendent viewpoints on things and the like. I've used it as a sort of "skillful means".
Now, of course one cant only rely on it for spiritual "gain". But, by naturally allowing you to perceive "out side of the box", one can learn viewpoints and practices while intoxicated by it, and then learn to apply the same thing when not intoxicated. Basically, its like training wheels; helping to open the door for things you will be able to do on your own without its help later.
It's been a friend and a teacher. I've bonded with others, i've communed with the plant, and it has taught me things, and I am thankful for my experiences with it. The plant has a spirit, like all things in nature, trust it and dont disrespect it, and it will not disrespect you. Disrespect it, and it can make you stupid, give you psychosis, get you in trouble etc. It's a powerful plant, it can give great healing and cause destruction.