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When death is your companion, life is rich.
When life is your companion, you ARE death.

A cup is of no value without empty space. When emptiness is the cup's companion, the cup is rich with fulfillment. Emptiness allows fullness.

When the cup is emptiness's companion and the cup falls away, emptiness is still emptiness. Death is life and life is death.

The formless forms and the form becomes formless.