I can well and truly say I've never been a breakthrough junkie.
There was a time when I first started my relationship with DMT where I'd be vaping small doses, then I would happen upon many words about people saying, "If I want to know the true nature of the molecule, you have to dose higher". Well it was all very interesting, euphoric, humbling and all the rest of that, but it wasn't until I went back down to lower doses that I felt I was interacting with that headspace.
Large doses are all DMT speaking, with little chance for me to even think about what it is I'm seeing/hearing/feeling and what are the reasons for the why. Sure a high dose silences the voice within and makes one face that pure surrender which yeah, it can be quite positively therapeutic, but when I'm just enough in there to still be able to think and feel, I realise this stuff sharpens my mind in a way a chemical never has before. How I can really enjoy my own thoughts and actually consider long enough to actually except this new perspective. I've never before experienced such an efficent analytical way of looking at and re-evaluating myself and changing my personal and world view to be more in the now and less in the then.
I imagine some day I will probably venture out into that deep inside realm to humble myself once more, but when I do it will probably be a part of something bigger. My prefered method of consumption these days is to brew a good non-admixture ayahuasca and then to periodically vape small amounts of spice and this way requires very little, it's not about what I can see as much as what I feel and it gets the job done. But I imagine a reset button could be a vital tool in this ritual at some point in my future, as with psilocybin cubensis my greatest teacher was death. But see, the thing about death is, he only has to speak once, so when he does I really want to make sure I'm listening.