I must be a rather different person, then. I'm alone most of the time, physically and mentally, but I can't ever remember feeling lonely. I always have too much going on to give in to such a non-productive feeling as lonliness. I see it as something I could choose to be, but I prefer to choose NOT to be.
But that's just me ~~ my glass is always half-full.
I don't want you to think I'm feeling depressed.
I'm just trying to make a comparison of what life is like here with our limited ability to share our true feelings, and what could well be waiting for us eventually when we are freed of Earthly limitations.