truth

Why people need compare themselves to others? Every one has their own life. Just live it. I have seen people get sad by only compering their life with others.
Basic question is why one is sad?
Someone is sad because of that someone don't have something?
Who says so that someone have to have that something?
Because some other one has It, so some one thinks that they should have that.
If one keep think about the life what is going to happen or what is true is one day each one of us have to leave this world. So it doesn't matter what we have and what we don't, does it?
It looks sad that we have to think about the death on the other hand that is the truth. Yesterday when we weren't there we didn't bother about what we had and what not, tomorrow when we gone we don't care what we have and what not, so why we have sad about today?
When we gone we are gone, did we do something that world would like to remember us? Unfortunately we just worried about what we don't have rather celebrate what we have. It is not easy not to think about what we don't have unless we know that we have to go one day forever.
When Janaka Raja was told that his capital city was on fire he was cool as cucumber and replied it's not mine. He knew the truth that it's not his capital once he gone it will be his son's, then it will be someone else. When do we understand the truth? or do we want to understand it?.
I do agree quest for happiness is the root of all unhappiness! People fail to understand happiness is inside them rather outside. We all belive that happiness is the ideal life, where everything is perfect and beautiful. I think our ancient philosopher's might have called that perfection as good. In normal human life nothing is perfect. Each and every person has an unfulfilled dream. So no one is perfect. But some people know to live a life of perfect feeling.
I remember a story from purana. Once God called all the scholar's and asked I want to live in one place where human being can't find me easily, tell me which is that suitable place. Different scholars gave different opinion, some said himalayas, some said under see, deep forest etc. Shukrachrya one of the great scholars of all time said one day people are going to reach all those places with their intelligence only place good for you is heart of human being, they always look for you outside you sit inside only eligible will look inside for you. God thought this is right and he started living inside each one of us. We being human look for him all over places and get upset and unhappy in life and ourself. If we know God is inside us ?