The human ego is the ugliest part of man. We lift up men who only show us darkness, and put down those brave enough to show us the light. Likewise, people engage in darkness when it is light outside, and acknowledge the light only when it is dark. We abandon those fighting for us to cheer behind those fighting against us. And, we only remember good people and God when it is convenient for us, and take them for granted because their doors are always open - only to chase after closed doors and personalities void of substance and truth.
The more often we see the things around us - even the beautiful and wonderful things - the more they become invisible to us. That is why we often take for granted the beauty of this world: the flowers, the trees, the birds, the clouds - even those we love. Because we see things so often, we see them less and less.