when any action in our day-to-day life is motivated by some expectant result, or by what only appears to be a real condition or circumstance in our l… - Dōgen

It is taught that all buddhas in the past, present, and future leave the household and attain the way. The twenty-eight ancestors in India and the six early ancestors in China who transmitted the Buddha's mind seal were all monks. They are distinguished in the three realms by strictly observing the precepts. Thus precepts are primary for practicing Zen in pursuit of the way. How can one become a buddha ancestor without becoming free from faults and preventing wrongdoing?

In birth there is nothing but birth, and in death there is nothing but death. Accordingly, when birth comes, face and actualize birth, and when death comes, face and actualize death. Do not avoid them or desire them.

So each moment we can see only part of the world, not the whole world. That is the source of delusion.