Everything except for the ending seems like a "standard" DMT trip. I know I experienced a large quantity of strange and bizarre encounters.
As many beautiful and horrific things as I was shown, there were random nonsense things occurring all the time. It's funny because my first trip also involved a gateway. I wonder how common that is.
I didn't back out of a freebase trip though, so maybe it's more abrupt than oral administration, I'll leave that for someone else to answer.
Sinbad is an entirely fictitious character I created for role-playing someone sailing their own consciousness as if it were the 7 seas. Also, the semi-colon was meant to be abused; incorrectly even!