Alcoholic parish - if you have been drinking alcohol for many years. Hard drinking, delirium, I do not take into account, this is a disease. And a regular middle-aged person who uses it is this: excitement (it doesn't matter, at work, anywhere else). Then, at home there is a drink. Took a drink - immediately the feeling of "Hulk" - "I'm strong, I can do anything, fuck them all." It is necessary to strengthen Sociability increases, households begin to send - "do not mess with your brains." Then we add (you can't refuse, you feel strong, smart, brave) - coordination is disturbed. It is advisable to go to bed. If you don't go to bed, then you can have trouble with your relatives, the next morning you don't remember anything, which is even worse (but what you will do - God forbid). Go to bed!
Coming is a slang word, and it means nothing more than the beginning of the drug / trip (from the English trip-trip, travel), that is, when exactly you begin to feel the effects of drugs It can be almost instantaneous, like cocaine, amphetamine, etc., or it can stretch for 40 minutes (nbome, mdma) or even for an hour or two (LSD). That is why they say so: wait for the arrival, that is, the start of action . I don't think there is any mystical overtones in this, unless you catch the corresponding trip from a powerful psychedelic.
There is a myth that our brain works only at 10%, although it is clear that the brain uses only those parts of the brain that it needs, but at the same time it never uses all of itself. When taking LSD, about the same thing happens as with epilepsy - our brain starts to work erratically, causing hallucinations and blackouts. In general, a trip is the release of a huge amount of endorphins and a disordered brain. There is nothing religious here, although in many countries, Ancient Egypt, Ancient Greece and the Maya Indians, shamans took drugs to "communicate with their ancestors", etc. It was believed that some drugs expanded consciousness, while others gave superpowers. You might think what the elixir of strength is made of from Asterix and Obelix.