Yes, although The Egg ultimately presumes separation of consciousness at some "higher level" given that there is a dialogue between such consciousnesses. My greater sense of loneliness comes from a sense that the very premise of a separation of consciousness exists as a deliberate goal of our universe, which was made by a "God" who is actually all of us, as a means to keep myself/ourself company and to introduce love. Sort of like we are all branches of the same tree. But people talk about having epiphanies about this as if it is a good thing that we are all the same, leading to a connectedness. But it also leads to loneliness.
Loneliness is a human instinct based on our evolutionary history as social primates though - if you travel up the antennae enough that there's no 'others' there's also no evolutionary pressures to make that loneliness a source of danger.
But what I find cool is that the lonely social ape can also look up the antenna and find all the security it could want - where I think some religions err is that when this happens, if you keep identifying with the insecure social ape rather than the many-antannaed-deiform it can interfere with the smooth communication between the two.
