i've always been a fan of the idea that 'we who observe the events never truly quit observing them' simply because we change upon each observation.
meaning when we go to sleep, we wake up different.
when we trip, we come down differerent.
when we talk to a new person, or enounter a new idea, we change forever and leave the self which heard the fact behind.
this occurance seems to justifiy the time dilation i've experienced on salvia before....the time stretched to infinity (to my observing view) and i wandered through the dense abyss of void for eternities. WEEELLLLLL, the person which observed the salvia transition never left the experience, the reason why time stretched to infinite from that perspective is because time no longer mattered from that reference point (and a new me would come into existence at the end of the experience).
this being said, i think that once you've exposed yourself to any mind altering effect, be it psychedlia or meditation....part of you will be 'high' forever.
Though obvsiouly the chemicals do have half-lives which will force them into metabolism at some point.
Its just about How we Grow as Individuals and what we choose to integrate.
If you choose to not grow and accept rebirth, you could dwell on the intesity of any psychedelic experience, potentiallly forever (trauma). Though each new thought and each new day forces some level of progression beyond such.
just be respectful to the experience (ie: think of psychedlics as leanring/growing experience and intend on growing and progressing as a self)!
for once you've accepted that you Are Never the same person (not even after one second of sobriety) then it is easier to guide your transcendance.
(and have a nice day

)