" The ego is definitely an advancement, but it can be compared to the bark of the tree in many ways. The bark of the tree is flexible, extremely vibrant, and grows with the growth beneath. It is a tree’s contact with the outer world, the tree’s interpreter, and to some degree the tree’s companion. So should man’s ego be. When man’s ego turns instead into a shell, when instead of interpreting outside conditions it reacts too violently against them, then it hardens, becomes an imprisoning form that begins to snuff out important data, and to keep enlarging information from the inner self. The purpose of the ego is protective. It is also a device to enable the inner self to inhabit the physical plane. It is in other words a camouflage. It is the "

― Jane Roberts , The Early Sessions: Book 1 of The Seth Material