Identification of Good and Bad.

We identify good and bad, but good and bad are permanent concepts. We say that someone is good, identifying some characteristics in them. Good is permanent, but we want that what we identify as good to be permanently identified as good, according to our view. For example, if eating makes us happy, we want to eat all the time, so that we are happy, because we associate happiness with eating. When we do not eat, we may become unhappy. What we do not realise is that opposite states are acceptable as good at different times. For example, when we sleep, it is good, and wakefulness is also required. When we depend on our perceptions, we become unreasonable, in my humble observation. If I think white is good, good will always remain, but I may not see white all the time. Then, if I see black, is it bad?