65. The useful functions of everything created tend upward, step by step, from the lowest to us, and through us to God the Creator, their source. As already stated [52], these "lowest things" are all the elements of the mineral kingdom--various forms of matter, some stony substances, some saline, some oily, some mineral, some metallic, with the constant addition of a humus composed of plant and animal matter reduced to minute particles. Here lie hidden the goal and the beginning of all the functions that arise from life. The goal of all useful functions is the effort to produce [more] functions; the beginning of all functions is an active force that comes out of that effort. These are characteristics of the mineral kingdom.

The intermediate things are all the elements of the plant kingdom--grasses and herbs of all kinds, plants and shrubs of all kinds, and trees of all kinds. Their functions are in support of everything in the animal kingdom, whether flawed or flawless. They provide food, pleasure, and life. They nourish [animal] bodies with their substance, they delight them with their taste and fragrance and beauty, and they enliven their desires. This effort is inherent in them from their life.

The primary things are all the members of the animal kingdom. The lowest of these are called worms and insects, the intermediate ones birds and animals, and the highest humans; for there are lowest, intermediate, and highest things in each kingdom. The lowest are for the service of the intermediate and the intermediate for the service of the highest. So the useful functions of all created things tend upwards in a sequence from the lowest to the human, which is primary in the divine design.

42. It is the same with love and wisdom, the only difference being that the substances and forms that are love and wisdom are not visible to our eyes as are the organs of our external senses. Still, no one can deny that those matters of love and wisdom that we call thoughts, perceptions, and feelings are substances and forms. They are not things that go floating out from nothing, remote from any functional and real substance and form that are their subjects. There are in fact countless substances and forms in the brain that serve as the homes of all the inner sensation that involves our discernment and volition.

What has just been said about our external senses points to the conclusion that all our feelings, perceptions, and thoughts in those substances and forms are not something they breathe out; they themselves are functional and substantial subjects. They do not emit anything, but simply undergo changes in response to the things that touch and affect them. There will be more later [210, 273] on these things that touch and affect them.