I typically meditate after smoking, but I don't think it's a physical anchor of any sort. I find it usually helps me tap into the serenity of the experience.

Something to try, though, is something I call social meditation. It's where a group of people, with a hookah, sit in comfortable positions and meditate, but also periodically come back and discuss their thoughts.

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There are only two mistakes one can make along the road to truth; not going all the way, and not starting. -Gautama Buddha