This quote is suggesting that we should always stay hopeful and keep working hard, even in difficult circumstances. Despite not knowing if our efforts will pay off, we should continue trying to do the right thing and never give up. By showing up and pushing through the darkness, eventually the dawn will come. The dawn symbolizes a new beginning, something positive and better than what came before it. So, hope begins in the dark and if we stick to our convictions, our efforts will be rewarded.