Monks don't rest under a tree when they go down and up the mountain. It seems that they have been in love for a long time. What does Zen say?

This is a twelve-headed trip. We don't rest under a tree in order not to let anyone support us or have a greedy heart.

Dodder seed

(Terminology) A monk should observe twelve items: 1. Take clothes, also known as dung-sweeping clothes. Those who sweep the feces abandoned by the same kind are sewn into clothes. Two, three clothes, and three more clothes. But I don't need the rest of the long clothes when I wear Sangha pear, Yuduoluo and Amdo Club. Both belong to clothes. Third, begging, and often begging. Begging by himself, I dare not be invited by him to eat among monks. Fourth, don't make leftovers. Before noon, you should be a regular food, not to mention regular food more than twice. The regular dish of the last two dishes is called surplus grain. Snacks are not subject to this restriction. Cake, fruit and porridge are called snacks. Fifth, sit and eat, then eat. Make a regular meal before noon, not to mention snacks. Six, a chuai food, and said to save food. If you eat the pills in the bowl, you will stop, but you won't be very painful. If you order one or more meals, you feel harmful and the amount of dieting is not good. There are four ways to eat. Aranro, translated as a place far away or an idle place. Live in an idle place far from others. Eight, sit between graves and live in graves. Nine, sit under the tree and live under the tree. Ten, sit in the open, there is shade under the tree, go live in the open air. Sit with you and live with the grass. There is no need to show the ground under the tree. Twelve, often sit not to lie down, often cross-legged and sit not to lie down. There are six kinds of houses. According to Buddhist theory, there are different ways to do things. If there are examples, there are sixteen. Today's zodiac is based on the announcement of Net Shadow Nanshan. See chapter 15 of Mahayana Sutra, and act in the form of money. According to Tiantai's theory, besides not eating leftovers and sitting with them, the second is begging and not drinking dregs after middle school. See stop loss view, auxiliary first line.