By focusing on the dark side of life, you will never find anything to make you happy. Make positivity your culture and see possibility in all dark situations. This way you will always expect the best to happen. This is a state of mind worth developing.
There is always a bright side.
Focusing on the illumination at the end of a burrow fills your whole life with light and happy thoughts. This light affects not only you and the way you look at the world but also your surrounding and the people around. It radiates all around you.