Absolutely everything that happens in the spiritual world and in the physical world results from a confluence of distinct and gradual levels, or of vertical and horizontal levels. We call the dimension constituted by distinct levels “height”and the dimension constituted by gradual levels “width.”Their position relative to our eyesight does not change their labels.
Without a recognition of these levels, nothing can be known about the differences between the three heavens or about the differences of the love and wisdom of angels there, nothing about the differences of the warmth and light that surround them, nothing about the differences of the atmospheres that encompass and envelop them. Without a recognition of these levels, nothing can be known about differences of the inner abilities of our own minds, which means that nothing can be known about our states of reformation and regeneration, nothing about the differences of the outer, bodily abilities of both us and angels, nothing whatever about the difference between what is spiritual and what is physical and nothing therefore about correspondences, nothing about any difference between the life of humans and that of animals or between higher and lower animals, nothing about differences in the forms of the plant kingdom or the substances of the mineral kingdom.
We can tell from this that people who do not know about these levels do not see causes clearly and fairly. They see only effects and form judgments about causes on that basis—usually by tracing a string of effects. Yet causes produce effects not by simple continuity but by a distinct step. The cause is one thing and the effect another, and the difference between them is like the difference between an antecedent event and a subsequent one, or like the difference between what forms and what is formed.
from Divine Love and Wisdom, Section 185