Its is human desire to have things of their own. There are so many things which give us pleasure in our life, but the greatest virtue in our life is SHARING things. If we share things like love, grace, hope with our neighbours automatically universal peace is possible. Mother Theresa appealed us if we really want peace, it should start at your home itself first. As she shared her love and humanity to the needy people, so as we have to share the same to the mankind rather than to have desire to owning things.
If you can not love a person you see, how can you love God whom you have never seen?