Summary
A man discovered a "lost thing" and he tries to get "the thing" back to where it belongs. The man first went to a facility that take custody of those "things", but it turns out to be, it was only a place where people can forget them. Then, a little "thing" came up to the man, and gave him a sign, saying "If you really cares about the thing, then go here." The man followed the sign, and found a place that many "lost thing" were living.
What is "lost"?
The difference that the masses didn't want to acknowledge.
What does "the lost" symbolize?
The symbol of isolation.