The mental aspect is pretty much equally intense day or night. But the visuals are another matter....
Magic Mushrooms
Day:
Everything takes on that dayglow look, where colors are more vibrant and everything is super cheery. Abstract patterns form on/in surfaces, plants become very distinct from one another, and my interpretation of nature in general is more enhanced. Surfaces swell and undulate, as if alive. Clouds move at a much faster pace than usual. CEVs usually look like a room made of textured cloth, rippling gently in the wind.
Night:
Surfaces become semitransparent, and I can sometimes see the cosmos behind everything. Visuals are colorful bands of energy that are detached from the environment (they don't have a visual basis).
LSD
Day:
Everything is alive with motion, and I get a rush from just experiencing the world. Patterns form on surfaces, but not to a high degree. The patterns do seem to be a bit more "out there" than when on mushrooms. For instance, clouds may look like fish bones, trees may take on a stained glass appearance, moss agate will contain tiny skeletons, etc.
Night:
Colorful bands in air, more technical in appearance than on mushrooms. I may interpret dim forms as something exotic, like the hanging sheet I saw once that resembled a beautiful woman.
San Pedro
Day:
Thick, colorful bands running above & underneath surfaces; golden symbols; trees dripping into the sky; stepping stones multiplying; tunnels of eyes (CEVs), blurry vision.
Night:
Not much different than daytime tripping.
DXM
Day:
No OEVs whatsoever. Everything's brighter, probably due to pupil dilation. CEV's are sharp, detailed, three dimensional scenes that I can view from different angles at will. I can also stop/start their animations. They often crystallize themselves into static forms.
Night:
In dim light, golden-gray lines form everywhere, often obscuring my whole visual field which can be very disorienting. They morph rapidly, often resembling Aztec designs or circuitry. I usually don't have much control over them. New shapes form out of the darkness, and objects will multiply and/or modify themselves. They only appear when my eyes are open, and are very much like mushroom or acid visuals. With closed eyes I can sometimes see the area I am in, which gives the impression of having my eyes open.
I prefer tripping on mushrooms and acid during the day. Walking through the forest, climbing under bushes and finding beautiful vistas is simply wonderful. DXM is great any time. I usually take DXM polistirex, which lasts a long time and lets me experience both day CEVs and night OEVs. I can trip for two days if I ramp up the afterglow with small amounts of cannabis
