Ego in my term is a lie store in our heart. In which we make our big identity on base of ego. Ego defines person attitude, status and respect. And without it man is just an empty mind. No any good or bad attributes
Man use term for human, he/she without any biases. Ego is something like a reality covers with Fakesness and illusion.
The main difference is hearts is it’s theory and mind it’s practicality. Without theory there no practical, and without having practical experience we doesn’t trust it.
The reality of man is uncovered in the man’s hearts and without breaking it we can’t open the truth.