So, the book you want to find is "Change Your Mind-And Keep the Change : Advanced NLP Submodalities Interventions"
by Connirae Andreas & Steve Andreas.
I'd like to find it myself.
(I'm _not_ buying another copy of this book!)
Anyway, the chapter in question is called "Accessing Kinesthetic States". Basically, the procedure involves remembering the _sequence_ of feelings you get after doing whatever mind-altering substance. The feelings need to be in rich, submodality detail. For example, "where in your body do you get this feeling?" "Does it have a temperature?" "pressure?" "constant or pulsating/throbbing" etc etc.
Sequence of getting these sensations seems to make a big difference; start at the beginning (go back to when you were getting stoned. What was the first feeling you noticed?") and from there you simply remember and imagine having that sensation now. Then notice the next sensation, and so on. Typically, if it doesn't work, it's that you missed some subtle sensation, or went out of order.
Once you've recreated it to your satisfaction, you can create what they called "designer" states. "What happens if you make that warm feeling a little warmer? a lot warmer?" ie, you can see which submodalities make what difference in the state.
Hope this helps.
--Brian