As far as my limited experience goes,
(not enough redundant to generalize though)
the more direction "vine power":
the more I experience body load;
the feeling to become exhausted;
my energy level going down deep;
the more I get knocked out;
the more susceptible I become for heavy (dark) energies floating in the group;
the more I want silence and get away from it all;
the lesser a good time I have;
the faster I want the ceremony to be over;
etc...
I realize that:
aya is not about having a good time;
that it illustrates many of my in-build "resistance" talking out loud;
I get slapped for probably good reasons;
many of my negative connotations are result of insufficient dieta;
etc...
Yet:
the more direction "vine power" a brew goes, the more the importance of tobacco becomes, is my add here.
This was more than clearly shown after I had a (Mapacho) tobacco drink & purge tons of water to flush it out, in the morning. Game change. The ceremony of that following night, I was on top of it all, and literally none of my usual burdening top list above was present.
It became my first real good aya session where everything fitted perfectly, and it set the mark of how it is when in-tune with the vine. This was no coincidence, and it reflected all that I heard before between the combo aya - tobacco (but warded it of as shamanic romanticism). I did smoke mapacho before during ceremonies but that was not sufficient this way to get the effects of the drink-routine. I'd say that smoking is good to touch the tobacco effect unless maybe I suppose one smokes a ton of it but that is not my way of treating the lungs.
I'll skip detailing the tobacco drink session, but in effect tobacco simply turned the whole vine heavy aya experience into bliss. It also let me believe that not much of my burdening-list was really my "fault", I just lacked the right assistance, support, cleaning, tune-vibe-whatever, that tobacco could deliver.
I tend to believe that the drunken tobacco really changed (poisoned?) my nervous system in a hardware way with beneficial effect, like I got suddenly the ceremonial "balls" of a shaman
It lasted a while, but lost it again gradually, slowly. I think drinking the tobacco once a month should keep it up, maybe someone else with merits can say more on this?
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PS: please don't get the quick idea to start drinking tobacco tea because it is simply dangerous, tobacco poisoning is real as people died from it in both drinking or enema form.