Being a night creature moths conduct their survival activities in complete darkness. So the moth suggests things that go on in us that we are usually completely unaware of. They live by their senses and creature instincts. So in your dream it indicates a life not connected with the intellect but with subtle feelings.
It might indicate you are finding your way through a condition in which you have no conscious knowledge but are sure and make your way – feeling your way in the dark – in the darkness of life.