This unfortunately reads like Deepak Chopra to me. The idea of Endless Joy/Nirvana is quite nice, but there is no documented evidence of anyone attaining it. We can supposedly only journey towards it, but never reach. Or, there's a dragon in my garage.
We're also talking about 'ego' as if there is one universal definition we all agree to. It can mean self-centredness and haughtiness, or it can mean the continuous self that one person goes through from birth to death - essentially our memory. It can be many things to many people, and different thing to the same person, at different times.
But within the context of Upanishads that you've quoted, ego is all that is negative about ourselves. But then - letting go of all that is bad is very logical, although not original.
We're also talking about 'ego' as if there is one universal definition we all agree to. It can mean self-centredness and haughtiness, or it can mean the continuous self that one person goes through from birth to death - essentially our memory. It can be many things to many people, and different thing to the same person, at different times.
But within the context of Upanishads that you've quoted, ego is all that is negative about ourselves. But then - letting go of all that is bad is very logical, although not original.