Your body is like a dew-drop on the morning grass, your life is as brief as a flash of lightning. Momentary and vain, it is lost in a moment. (From '… - Dōgen

Such a practice requires exerting all your energies.5 If a man entrusted with this work lacks such a spirit, then he will only endure unnecessary hardships and suffering that will have no value in his pursuit of the Way.

If you have compassion and are imbued with the spirit of the Way, it is of no consequence to be criticized, even reviled, by the ignorant. But if you lack the spirit of the Way, you should be wary of being thought of by others as having the Way.

You should understand that birth-and-death is itself nirvana. Nirvana is not realized outside of birth-and death.