It's really hard to say how long the actual peak lasted with a trip like that, all I could tell was when the effects started to come up, when I lost the ability to keep track of time and when I was able to think/speak/see properly again to understand what time is and communicate. The intensity of the trip really was such that something like 20 minutes from on-set to come up, I was already overwhelmed by the effects and started panicking because I my reality was getting ripped away from me so violently. There's simply no way of telling how long the peak, during which I believe I was lying blind/deaf in a pool of vomit, being tormented by an internal hell lasted. Atleast that's where I woke up, I had been sitting on a chair from which I fell down. Then, when I was finally able to utter a word out of my mouth, still having quite an experience visually and mentally despite coming down, I asked my friend how long time has passed since we started tripping, he answered six hours.
By eternity I mean time literally stopped for me, I was stuck in horrible loops during most of the trip, but the peak itself was like being inside hell with no means to keep track of time, the concept of time had simply disappeared from my reality at that point. There was nothing but my consciousness and I was all alone in the void, I didn't black out or anything, though I wish I had. I was so, so alone my head filled with dark thoughts. From that point on, I've hated existence and wished I could just stop existing, but I believe that even death won't save me from the hellish reality I saw during this trip. I still want to die, I just think it won't solve anything as I can't escape the nature of existence by simply destroying my body. It wasn't a friendly and loving experience at all... I need psychotherapy but I've convinced myself no therapist can help me. Somewhere inside I feel like I have to go back to that place again I went during my ayahuasca trip, to face my fears and close the circle, but I'm so fucking afraid I'd almost rather just kill myself than drink that tea again.
This is why I try to warn people not to mess with ayahuasca or take it lightly, out of compassion, I don't want anyone else to damage their mind the way I did six years ago or so, the stuff STILL haunts and cripples me. I'm quite certain that lighter doses will not cause something what I experienced, but the thing is, a friend of mine took the very same tea with me and didn't have nearly as profound experience as I did. Perhaps he purged too early, lucky bastard... If I remember correctly, I didn't purge at all when it was supposed to happen, but I was vomiting during the come up when the mental effects were so intense. Even with an empty stomach my body was forcing itself to constantly vomit out of panic until it finally gave up and I curled into a ball.