There are no degrees of being. There is no change or motion in what exists, or a change of being. What exists is perfect from all angles. What humans perceive with the senses always exists. The Way of Seeming gives the unreliable source of human belief.
Humans believe in two opposites to all matter.
All things have two forms like soft and hard or hot and cold. Parmenides believed that all existence is single. The Way of Seeming is the way humans see the world. Immortals see the world as The Way Of truth. The fundamental mistake of humans is that there is a minimum difference if reality when all reality is single.