All the Buddhas, whether in this world or in other quarters, in the western heaven (India) or the eastern earth (China), equally held the Buddha-seal… - Dōgen

At the time Dōgen Zenji was writing the Tenzo Kyōkun, he had already left Kennin-ji in Kyoto, and had set up his own monastery at Kōshō-ji in Fukakusa, just south of the city. At Kōshō-ji, Dōgen gained a reputation for being a strict teacher, and the number of disciples and followers increased rapidly. Hence, it was only natural that some sort of regulations be established to insure that everyone could practice with as few difficulties as possible. These regulations were born out of the situation as it developed.

Not to encounter a true teacher will result in being led around by your feelings and emotions. The case of the foolish son of a wealthy man leaving home with the family treasure and throwing it away like so much rubbish is truly a pathetic one.51 Likewise, to the extent that we are familiar with what the work of the tenzo is we must not squander it.

Because monks come from the midst of purity, they consider as good and pure what does not arouse desire among other people.