We identify ourselves with the family we are born with. We also identify ourselves with our caste, religion, ethnicity, race and the nationality. This is the reason our possibility is bounded. When we identify ourselves with these human-made perks, we become limited. Our opportunity to become more shrinks.
Human being are born with limitless possibility. So identifying with the cosmos is what makes us become more and limitless. The more we identify with the artificial things, the more limited we become and the less we achieve.
To strengthen our possibility and to achieve more we got to identify ourselves with whole earth or even the cosmos.