Everything you feel, everything you see, everything you hear, everything you taste is real. A Zen priest focuses on what is real, what is concrete, what is actual. You should know hot and cold for yourself. No matter how much you may say about hot and cold, what you say is only an explanation. In Zen it is the experience of feeling the heat that is most important. Experience the cold that comes from touching ice. This is the way of the Zen priest in his everyday life, a way that emphasizes concrete experience.
Fukushima, Keido. Zen Bridge: The Zen Teachings of Keido Fukushima (p. 169). Wisdom Publications. Kindle Edition.