I absolutely love this quote, and not just because it is from Dumbledore, one of my favorite literary characters.
I think this quote just emphasizes the importance of perspective on life. As it says, even if you are in a really sad place in your life, you can still find happiness, whether it's a good book or some friends you can laugh with.
One way you can apply this is by taking some "Me Time" when you feel overwhelmed by school, friend drama, or family situations. Set aside time to watch your favorite TV show or catch up on your magazine subscriptions or even organize an area of your room.
When times are tough, think about this quote and remember that you will always be able to find a little shred of light in the darkness.
Annika