The ancient orchid text "Lan Yi" was written by Feng Jingdi of the Ming Dynasty

In the preface to "Lan Yi", Feng Jingdi of the Ming Dynasty wrote: "The way of cultivating orchidsis fully embodied in the Heavenly Root Changes; the enlightened expound it and apply it appropriately according to the times. However, the temperament, character, and virtues of orchids include things that books cannot fully express, so I have privately weighed the theories of the hundred schools to extend their meaning, making twelve chapters in all, which constitute the Wings of Changes."

"They delight in the sun but fear the heat, delight in wind but fear the cold." (Discussingorchids'temperature requirements during growth, namely what they like and fear regarding yin and yang, warmth and cold)

"They delight in rain but fear flooding, delight in moisture but fear dampness, delight in dryness but fear aridity." (Discussing the water requirements in orchid cultivation)

"They delight in fertilizer but fear turbidity, delight in soil but fear thickness." (Discussing requirements for growing medium and fertilizing)

"They delight in tree shade but fear dust, delight in warm air but fear smoke, delight in people but fear insects." (Discussing cleanliness and hygiene, insect removal and sterilization)

"They delight in growing in clusters but fear separation from the mother, delight in cultivation but fear pampering." (Discussing orchids'Floralclustering growth habit andcultivationmanagement requirements being appropriate)