In HotU when you break into the Main Ilithid's chamber you're transported to a vision of perfection - paradise where everything is perfect. Your friends, your love, your life. But it's not necessarily the truth.
In the Matrix, "real" people are hooked up to the same server. Real people interact through an artificial medium not knowing that it's not really real, but they could lead blissful lives.
Now if you had the choice to live a perfect/blissful life in your mind (probably eventually forgetting the previous life), would you accept or would you prefer to stick to reality with all its imperfections? Conditions?