The foundation of the ego is simply the suggestion that you are not love - the love is not in you or what you are - so you are deprived of it - so now you need to go restore the sense of lack by finding it somewhere ELSE other than in you. You go off hunting for a way to fill the emptiness, which reinforces your belief in the emptiness. And even if you find something, it won't heal the sense of LACK, and you won't accept it, because it's not really what you want. You want yourself back. You want God's love.
The separation of your identity from God's Son leads to:
Seeking outside yourself
All idol worship
All loss and grief and loneliness
All sense of abandonment and rejection
Seeing yourself as separate from God and others
Having nothing to depend on ("independence")
Not being true to yourself
Seeking for what you lost where it does not exist and not finding it
Losing even more of what you are by being compelled to replace it
A belief that you can die
All vulnerability and sense of threat
Mistrust (in yourself)
All paths efforting to 'find yourself' but remain separate
The spiritualized ego
The inability to share or join
Condemnation and judgement and blame (of yourself)
Shame and guilt for who you are
Unworthiness and unloveability
Suffering and suicide and war (with yourself)
All anger and upset and disasters and terrible events
...And on and on.
Just this one thing. This one idea of - I'm not myself - where am I - who am I - I am separate from what I am - I am not as God created me - leads to all of these other dynamics and activities and perceptions.
You can't have any of them without this one foundation - this sense of separation from yourself. And since you and God are one, it is simultaneously a sense of separation from God.
"A sense of separation from God is the only lack you really need correct." - ACIM
And here's the clincher. Every single one of those things on that list above that you currently believe are caused by all kinds of things OTHER than the ego's foundation, are NOT caused by anything other than the ego's foundation. And so it is the sheer 'fact' of 'being' an ego - separate from the love you are - that causes every single problem you face. All hell comes from it. Being separate from God and your True Self is the ONLY problem that needs correction. All other problems are illusory problems masking the one problem so that you will not correct it.
So each time I am in the ego, in some way I must be believing that I am separate from God and myself. I must be going down some path which tells me it's going to help me RESTORE who I am and what I lost, BUT which will NOT restore it, because the entire NEED for that path comes from believing I LACK what I'm looking to restore, and until I stop beleiving that I won't ever be able to ACCEPT that I HAVE WHAT I REALLY HAVE ALREADY.
You ARE as God Created you. You ARE love already. This you need to accept, and let go of all these other ego pursuits that trick you and lead you away from it. Everyone is being deceived by the ego's suggestions of everything you need to do to 'fix' the separation, which seem to lead you to resolution but in fact lead you to an EVEN WORSE situation. Seek and do not find. Fix and do not correct. Pursue and fail. Search and lose. Try to have and do not have at all. Hold on and lose everything. This is all the ego's deceit.
One error, one correction. Holy Spirit's is the Answer from God because He Knows the solution to this problem - that the problem really IS NOT REAL. You are NOT separate from God or Your Self and the separation NEVER HAPPENED. So you are love. And that is why you need do nothing.