Mostly I smoke sub-breakthrough amounts of changa.
On a good day I will hit the Changa and after 3 or 4 tokes I start to see things.( sorry to be vague but you know DMT effects are hard to describe, plus I wanna get to the point )
At that point I know to lie down and close my eyes. If I start to see patterns or objects forming I quickly don my blindfold for darkness.
Then the God code comes and other stuff that I cant explain.
This business only lasts for about 1 to 5 mins, eventually disappearing .
At this point I leave the blindfold on and find a place of deep thought with occasional visuals .
Whilst I'm in this state I have deep thoughts and gain understandings . I can stay in this state for up to 20 mins roughly . When I leave that state and return to the surface so to speak my first thoughts are to try and remember what I was thinking about.
Some times I learnt or realised some thing that I had never considered before and I can then think more on the subject. Other times its like a dream where as I just cannot recall what I was just thinking about.
I just came back from such an experience and I really struggled to recall my thoughts , I managed to grab a thread which lead to the full subject. Now I can think on it for some time
Could this be a place where my subconscious resides ?
Do you guys/girls experience the same things ?

I get this every single time i smoke. More with harmalas.
The trip wears off, but for 15-20minutes or so afterwards there seems to be an introspective state with a calming of mind, similar to the results of a meditation session, where i feel inclined to remain entirely silent. When i'm alone i often do not break the silence for hours.

Agreed, and like you I prefer sub breakthrough amounts of changa. When I want to go deep I drink the brew.

Nice to know I'm not alone.
Its also like a mental reset or refresh button.
Some times I get what I can only describe as a mental wave or a shudder going through my brain .
It usually results in me opening my eyes and snapping out of that state.
I used to for some reason think that this shudder/wave was a physical change happening in my brain, I'm not sure how I came to that conclusion.
A few weeks ago I had a brain shudder but this time at the end of the shudder it kinda got stuck, like a system crash. It resulted in me opening snapping out of that state with a fright. Since then I've been wave/shudder free.
Do I sound like a nutter? haha . I'm really not

I had an experience on new years day.
I started smoking the exact same amount I've been smoking all year, the same amount as I smoked the previous day.
This time though it hit me hard, like a full on spice vape.
Outdoors this is a wonderful experience but indoors fear takes ahold rapidly. Even after many experiences and a life changing breakthrough, large amounts indoors scares the crap out of me.
For the last few months I've been nagging my friend that I wanna enter the new year after a proper breakthrough done outdoors, so I can enjoy the cerebral high that follows and also the utter astonishment that you just went some where and met an alien.
He didn't come through, he has his own relationship with spice that is quite a poor one compared to mine.
So on new years day to be given a gift like that was well received .
At the time of the incident I thought to myself that this is a set up, by the spice.
I could barley operate the remote control to turn down the music that was disturbing me which is normally a must for Changa sessions.
I had to tell myself to lie back and don't fight it as scared as I felt.
My next move was to don my blindfold, the second I did I entered a world of extreme definition with metallic colours, I watched in awe.
What I saw I took as a gift and a message, that this is what your missing out on by smoking sub break through amounts.
Afterwards I lay there , not feeling great and ready for deep thought but I felt battered like I'd been through the mill.
I also remember a few hours before I partook I had a feeling that today the spice wouldn't work for me. How wrong I was.
Happy New Year.

I wouldn't durst say that it is your unconscious mind, but I would claim that it gives better access to parts of it. Fusing with the complete unconscious might be a scarey place that I am not sure I could tolerate fully or it could be the best experience in the world.

Salvia opens those doors to The Unconscious but closes some other aspects of mind so it seems weird, distorted, freaky and intolerable. Unfortunately DMT has shut off my ego in the same way yet with sub breakthroughs.