Have you ever smelled a good earthy smelling hash? Like that, mixed with the smell of straw.
Yes, I do know that smell. I haven't had much hash in my life, but what I had was exquisite.
Weaselcracker, one of these days you're gonna tempt me beyond belief and I'm going to secure some Thai seeds. We have similar goals in our cannabis choices, and your description of the effect the Thai strains has on you mirrors my reaction to the smell of Carnival. It smells "just right" to my brain. I have this theory that our body seeks out the terpene profile that'll most benefit us, and that's why it's a good idea to let your nose pick the strain, if it's at all possible.
When you find a strain that really works for you, take note of the terpene profile and look for others that share the major components. Play around with combinations and see what wonder you can generate. Cannabis is so much fun to play with, eh?
All this time we thought it was the cannabinoids we were supposed to pay attention to. Turns out the terpenes are the real driving force behind what cannabis does inside your body.