>>11445918 contFreud discovered we are all into loving our mothers, but that's not really literal. It's just that we came from our mothers and initially the external world (actually our mother's body) gave everything to us. There was no possibility of failure from our part, you see. Gradually and through a series of traumas, we are born, stop taking from her breast, walk by ourselves, eat and shit by ourselves, become independent, develop our own desires and so on. Everytimewe move a step, we lose the security we once had. That is represented by the father, which is like the full adult that we know we are to become, indepedent, on his own. This is understood by us as an opposition, the world is not there to provide for us, there is competition and real dangers.
Our minds play a bunch of different tricks to cope with all that. We want to be independent, but we also want safety. We want to have power, but we also want the world to provide for us. We miss the past, but it simply can't come back. It is in the between of all those things that our desire is formed and what makes us produce our own ideals, make us work and so on. All of that can be put in metaphors of desire.
To Freud the baby is constantly aroused by the world, that's why it smiles when you smile back, or why it cries so easily, it's in an ocean of arousal. When we grow up we learn to control, repress some of that, directing it towards this or that thing. At that point enters society and all its values, taboos and rules that we either adapt or rebel in various ways.