I'm not sure if you mean besides the psychedelic aspect or not. Either way, people ingest magic mushrooms to be more in tune with their inner spirit and mother earth. It is a very spiritual thing that shouldn't be abused. It is not a recreational drug at all. It takes away in filters that your mind has so you are seeing everything as it truly is for the first time rather than what your mind has trained you to perceive it as. Basically, they are for spiritual purposes, but there are plenty of kids and people just looking to get ^HIGH^ that will abuse them and not get much more out of the experience besides some giggling and some "pretty colors." Do not take them lightly.
Button mushrooms.
if you mean f(mushrooms) then use whatever function on the variable or variable mushrooms. if you mean the function mushrooms, then i have no idea as i would assume there is no standard function mushrooms.
Many seafood stuffed mushroom recipes call for the use of simple white mushrooms. I, however, prefer to use portobello mushrooms because I think they give my recipes a more complex flavor than the white.
they use spores
Mushrooms need warmth to grow and do well. The sun provides warmth.
Yes.
No
The structures that mushrooms use for reproduction are called spores. These spores are spread by wind, rain, animals and other natural causes.
believed they were spirits
It is believed that possibly, the Berserkers did.
As a food source.
you can get mushrooms if you go to mt moon and use the item finder in the lower levels near rocks