I am not sure but this seems to be the way for tryptamines, I always get a burst of creative energy and/or inspiration, it has been often that I have wished to take one of these substances in order to "do something" but this can lead to a sort of dependence as it can be a sort of escape from the doldrums of depressive moods. Maybe it could be something to do with lower levels of serotonin and these substances tend to mimic this neurotransmitter so this may be something to do with it.