Life is a grain of rice is a paradox that I have considered for many years to the following conclusions.
Nothing is forever. Everything ends ultimately. The eternality of time will cover all in a silence of dust and overgrowth.
We can but accept the constraints of pain and time, greed and need, joy and love, fear and lust, and the paradox of self-awareness, and its relevance to the grain of rice.
And the only conclusion I can reach is that Life is NOT a grain of rice.