ThE cOiN oF lIvE
You need to know what poor is before you know what it's mean to be rich. You need to experience sadness to know what happiness is. You need to know what anger is before you know what serenity is. You need to know what hate is before you know what love is. Clear and peaceful Blue Ocean always comes after a storm.
Good and unpleasant value, they both are basically two side of a coin. They give you the same sensation, but most people don’t know about this. It's because they never use their heart to observe the sensation, to observe what is going on within them. So use your heart to observe what happen within your self and flip the coin to a better value.