That's cool! This is exactly how I'd describe the come up of breakthrough dmt doses. Bodily vibrations too, perhaps?

I believe people who have practiced astral projection have techniques similar to this. I have tried them a bit but haven't got very far. I can control the vibrations, which some say is the first step, but haven't got further.

I, however, remember once taking a very small dose of dmt and then through suggestion helping the buildup of the breakthrough. By that experience I believe it is something that can be controlled to certain extent.

Your experience is very encouraging. I think I'll try to experiment with this too.