Interpreting a dream?

Well, the dog means faithfulness to the blind man and if someone is blind, then he's doesn't go out into the world or he feels helpless and lonely. You seem to feel sympathy for him, because maybe you've experienced it yourself. He seems to be lost and you want to comfort him. Maybe he's a relative who died and you feel like he's part of his soul. I may be wrong, but that's my opinion.