"He prayeth best who loveth best All things both great and small." Samuel Taylor Coleridge

 Existence precedes essence. You exist before having any concept of who you are. You become who you are by making decisions, choices, and actions. Because we have no given purpose, we have to give one to ourselves. You decide what you value and what your passions are, that becomes the purpose of your life. The meaning of life is to be alive. The purpose of life is whatever you make of it. Because it is yours, and only you can make your decisions.