56. Verse 29 And God said, Behold, I give you every plant yielding seed which is upon the face ¹ of the whole earth, and every tree in which there is fruit, the tree producing seed will be for you for food. A celestial man takes delight in none but celestial things, and because these suit his life they are called celestial food. A spiritual man takes delight in spiritual things, and because they suit his life they are called spiritual food. The same applies to a natural man and natural things, and because they suit his life they too are called food, and are chiefly facts. Here, since the subject is the spiritual man, his spiritual food is described by representatives, that is to say, spiritual food is represented by 'the plant yielding seed' and by 'the tree in which there is fruit', which in general are called 'the tree producing seed'. His natural food is described in the next verse.

Footnotes:

We tend to think of "fruit" in two ways in natural language. One is as food that grows on trees and vines, sweet and delicious, and able to be eaten without harming the plant in any way. Another is as the things we produce, what our work yields for the betterment of the world. These are obviously connected: we are like trees, producing things that "feed" the world in some way, just as the tree produces fruit that feeds us. It makes sense, then, that the idea of fruit in the Bible is bound closely to the idea of goodness. Fruits that are eaten represent the desire for good and the energy to do what is good; fruit that is produced is the actual good that we go into the world and do.