Love and Hate, Joy and Sadness
Pleasure and Pain, Life and Death
Yin and Yang, Balance and Chaos
We cannot enjoy the Fore, without the Latter.
This Was something I said to a friend during a discussion about why "bad things" happen.
The point of life is to take the good and concentrate on it to point of having overwhelm you with a sense of peace. Only then can balance truly take root in your heart.
I certainly agree that good things and bad things are always tangled up together. You can never cleanly separate the two.