I totally agree with everything you say, except I'm not really bothered about the specifics of the sleeper's age or anything like that. The sleeper could be anyone. The sleeper is us.
As far as themes, message and meaning go - I'm in total agreement.
I think The Void has a lot of life lessons for those who want them - a lot of things to ponder on - a lot of themes that can be applied to our lives. And in this (and other ways), it's a pretty damn unique and inspirational game!
It reminds us that we have the chance to live great and fascinating lives... or we can fall into decay. It can be extremely hard to strive for the things we want. But in the end, it's worth struggling.
You're certainly not over-analysing things, J_4mes. The Void begs to be analysed, and it begs the player to analyse themselves
Thanks very much for your thoughts, and for all your input on the forums!