Observe people with cool eyes, listen to their words with cool ears. Confront feelings with cool emotions, reflect on principles with a cool mind.
There is much meaning in the word endure. For example, when dealing with unstable human feelings and uneven pathways in life, without endurance to hold you up, you may fall into a pit in the brush.
Your own feelings may be reasonable or unreasonable; how can you expect others to always be reasonable? It is useful to see things in this light and thereby correct the contradictions in your expectations for yourself and others.
Our body is a small universe; to regulate emotions and feelings is a way of harmonization.
Even if you do no work that is particularly lofty or far-reaching, if you can shed mundane feelings, that is a great achievement. Even if you do not strive much for progress in learning, if you can minimize the influence things have on you, you will soar into the realm of sages.
