a mushrooms peak (+alcohol) (+weed) can provide the cleanest, safest, most wholesome, most profound and literally incomprehensive rush of euphoria ever. its totaly unrelated to current impressions or situations, its just THERE. all over the place. anytime. anywhere. you could knock over in the gutter, puke on yourself and get gangraped by grizzly bears. you wouldnt mind, because its just way to intense and impenetrable to let anything but this insanely awesome moment touch you.
its the end of anything as you knew it before. your ears block, you get frame vision, you can still see the stuff around you, but you have no idea what all these things are. its just you. you and your current state. nothing else matters. you cant talk, you cant walk, you just _honestly_ feel like
"HOLY FUCK YEAH, CHECK IT OUT! IM BETTER THAN ANYTHING ELSE!"
its the unchallengeable proof what your mind is capable of. once experienced, it will change your general attitude towards all your functioning, thoughts and lifechoices in a VERY positive way. youll be in total peace with yourself. any problem, any bad time, any suffering from whatever, any doubts and any remorse will be gone forever.
but on the other hand... there is no guaranty for the whole thing. especialy when you trip in groups. you have to direct yourself to that point. but if you arent distracted by stuff (like other people) you can be pretty certain that it will happen. prepare yourself for the time (for me its usually like 20-30 minutes, but it seems like an eternity) of your life!