The natural Purpose of life is Sustainable survival We need to protect survival to achieve our purpose Life without purpose makes little sense and is unlikely to yield long-term happiness. We should think about our purpose now because we can’t turn back time later once we realize we wasted our time doing something meaningless. Many people confuse goals for purpose or believe in irrational purpose. The natural rational purpose of life of any living organism including human is sustainable survival. We seek happiness on top of survival, yet there is no happiness without survival Our survival is threatened, because we are unsustainably destroying environment and becoming vulnerable to a global catastrophe. Steep decline is inevitable and the likelihood keeps increasing every day. Nobody else will take care of us. But we can live meaningful life by preserving the environment and building more robust systems and thus increasing our chances for sustainable survival. You can start living purposeful life today. If you agree, “like” the cause on Facebook to join us who want to protect the sustainable survival of our civilization. If you don’t understand or agree with any statement, click on it to read more details.