supernana - I too believe every atom of my physical being will be recycled by nature. And I too wish to live my life well, doing no harm to any living thing, hopefully leaving this world having done all I could to bless others, and give back to my fellow man that which will encourage, enhance and uplift those who come into my life. But I am also fully aware that I am not just flesh and blood, but also soul and spirit.
I used to believe at the point of death there was just annihilation....but I came to the realisation that that was a cop out, it meant I could abandon all responsibility for discovering the reason for my existence.
The reason we are all brought into this world is to experience what it means to be fully human, the good and the bad, to discover the best of ourselves is to be connected to God's Spirit. I have known the comfort of His nearness, and His gentle guidance at difficult times in my life. He has proved Himself to be deeply aware of my comings and goings. I now KNOW my life will continue with Him after physical death.