Earlier quoted context omitted.
Both things change how you think temporarily. I think they both do so in such a way that you can identify and emotionally deal with stuff that would otherwise remain unresolved.
I'm sorry, but there is a fine line between dealing with stuff and smoking weed, one of which involves dealing with stuff, and the other postponing dealing with stuff.
I've set my life priorities with help of weed. They still hold to this day. I've done some of the best decisions on direction of my life with weed. Looking back +-10 years ago, damn those were some fine decisions. Weed gives me, when alone, often semi-constant stream of very creative ideas just popping out of sub-consciousness. I've come up with ideas for startups at least 50x, often to find later somebody is already well into executing it (often in areas I normally don't touch, ie self-belaying machines for climbing, or self-shaping moving wall for climbing - I never ever saw/heard about any of those, but it seems they are quite popular in US).
The rate, amount and depth of those ideas just isn't there when sober. The rate is so high that I sometimes don't manage to record them all.
All this was done alone, just me and my emotions. YMMV, but for my introvertish personality type, it works wonders. There are drawbacks of course, like with everything else. But postponing dealing with issues is more of an alcohol style effect.