The Seventh Prasad
Instrumental in creating this Ego are the caretakers, the fully growns, often but not always the parents, especially the mother initially. The fully growns become both the models and the delivery systems for this diminishment and perfect wrongness of Consciousness.
Of course, humans were not humans for millions of years; your predecessors were Planetmates and Earth Citizens like us. There came a time when small groups of your forebears, living near swamps and oceans and gathering their food in the shallow waters, spent long periods of time in that water and found it easy and beneficial to lift themselves up on their hind legs, more and more. Over hundreds of thousands of years, this activity led to bipedalism on land as well.
Unfortunately, this supposed benefit over time created narrower pelvic bones and narrower pelvic/vaginal openings in your females. There was a time preceding this when your females had pelvic bones that were wide enough to give birth to twenty-month old newborns. These newborns were as ready as Earth Citizens for physical existence when they were born, and they were born without the difficulties and pain that characterizes human birth, for both mothers and fetuses.