The concepts "soul", "spirit" and last of all the concept "immortal soul" were invented in order to despise the body, in order to make it sick - "holy" - in order to cultivate an attitude of appalling disrespect for all things in life which deserve to be treated seriously i.
There is a universal need to exercise some kind of power, or to create for one's self the appearance of some power, if only temporarily, in the form of intoxication.
Marriage was contrived for ordinary people, for people who are capable of neither great love nor great friendship, which is to say, for most people--but also for those exceptionally rare ones who are capable of love as well as of friendship.