The dimensions are indeed distinct realities, which we may term height, width, and depth, but we cannot call them parts, nor can we remove one dimension from the space in which we live. Three-dimensional space is composed of three inseparable dimensions. This analogy fails at a certain point to describe God as well, because there is really no way to distinguish one spatial dimension as special or different from the others. As yet, however, we have only discussed how something can be different and yet inseparable. We cannot yet comprehend what the meanings of the words Person and Nature are.
Persons are objects and sources both of communication, and of love.
The Divine Nature is that through which the Divine Persons are and through which they act. The Divine Nature is to the Divine Persons what the body is to a human person. However, as I noted before, the Divine Nature is not something material, rather it refers to the Divine Perfections as noted above. These next few points are somewhat detached from the above discussion, but it is useful to bring them up as they are common misinterpretations. Although the idea that the Divine Nature is Goodness, Love, etc. rules the interpretation of Divine Nature as a term meaning Divine species, the interpretation is voiced on occasion.