Meaning, or purpose, is only derived by studying the Past and applying what you've learned to the Future. But both Past and Future are concepts and thus not real. Because there is no Past or Future in the Present moment, there can be no meaning or purpose in the present moment.

In terms of worldview, Unity stands as the prevailing construct. You as an organism seek your own advantage, you seek to advance the Self. But if everyone everywhere is included in your definition of Self, then you would treat all beings with the same respect you give yourself.

We as humans live with a consciousness engrained in Duality. This is helpful to us as we can see easy distinctions such as hot and cold. However we then assume we are isolated from this Universe. Quite the contrary however; you ARE the Universe, you ARE reality itself. Celebrate!