I'm interested in brains and perception of meaning, so by extension, I believe how people interpret an expression (perhaps even something like my sig), may reveal more about them, than is meant by the saying within itself.
For me, it reflects that this isn't actually a good place for me to be, it's a reminder to myself to stop and get out. It could likewise act as a warning to other people. Or take it outside the confines of a website and apply it to the world (I don't believe I'm meant for life on Earth).
That you find something disturbing about it, may say something about what's going on in your life atm. Or it may not.