What is the core purpose of life? why are we living? what do you leave after you are not in this world? too philosophical questions. :). If we start thinking these things, we will become some saints, preaching. I have been giving a deep thought about this very question - What is the core Purpose of Life? We take birth, grow up, again give birth and die one day, the four stages, very prominent. No one can change this except for very few people who do not give birth. Apart from that, everyone's life is similar. Each of the human beings compete with each other to be either first or to get something. Including people staniding in the queee in a Temple. There also some people set rules to see God. People forget the basic idea of Life - Serve the people around you, and never harm others. Man is a Social being, he lives in a society, taking help from others and giving help. In this process of helping others to get help, he goes to the extremes and when he does not get what he has expected from the other person, he revolts back and tries to get back, what he has given.
The core purpose of life is to just keep giving and dont expect anything in return.
If we are living in this world, just think that you are not going to take anything back with you when you are leaving this world. So free up yourselves with all the earthly things. If they are there, they will be there, else no worries. Live life as it comes, and stop thiking about what will happen if you dont get something. Definitely you will get what you deserve in this world.
Also live your life with some basic ethics of not cheating others, being jealous, and hatred. Love every one, the only reason they behave is out of ignorance. Forgive them and love them for what they are. Jesus is one example, who always loved each one around him, and he became a saviour and God. There are many saints, who have shown the world way of how to live. Religion is foloowing the basic ethics and loving everyone.
Live and Love...