The non-dualist Hindus, holds the same belief, that the ego is kinda evil. It makes us take wrong decisions. This ego is part of the psyche/subtle body.
This subtle body AKA mental body is basically the whole psychological process and its made up of -
1. Manas (active mind)
2. Buddhi (intellect),
3. Chitta (subconscious mind),
4. Ahamkara (ego)
As per the non-dualist hindus, we are all inter-connected by an infinite spirit or consciousness called Brahman.
Since i'm a follower of non-dualistic / monistic Hinduism, i'll speak from that P.O.V.
We believe there are three types of selves.
1. The lower self (which is the physical body made of flesh and bones.)
Do note, it is just a vessel and not the real us.
2. The inner self (is the subtle body AKA mental body AKA psyche) and it contains the ego. The non-dualist hindus also call this body the 'soul'. And this subtle body or soul transmigrates/reincarnates.
Do note, this body too is just a vessel and not the real us.
3. THE HIGHER SELF.
We call IT Brahman / Universal Spirit / Universal Consciousness.
... This is what we truly are.
... We are Spirit in our true, original state.
... Do Note: The Spirit and soul are different as per Hinduism.
... The Spirit as i said before is infinite like the vast cosmos. And there is only one Spirit in all existence which manifests as stars, planets, galaxies, subtle bodies, physical bodies etc.
... So, when this infinite Spirit manifests into matter (into innumerable subtle and physical bodies, which are nothing but vessels) there comes into existence all sorts of individualities.
... The moment we drop all the vessels upon attaining liberation / nirvana / moksha, we again return to our original infinite Spirit state.
This is what I've learned in the past 3 years. Thanks to the members on RF.