375. The correspondence of the will and intellect with the heart and lungs cannot be directly confirmed, that is, by rational considerations only, but it can be by its effects. The case here is the same as it is with the causes of things. Although causes can be seen rationally, still they cannot be seen clearly except through their effects; for causes exist in their effects and allow themselves to be seen through them. The mind is not convinced of the causes prior to that. The effects of the correspondence being considered here will be presented in the discussions that follow. Lest anyone in thinking of this correspondence slip into ideas gained from hypotheses regarding the soul, however, let him first read through the points that we demonstrated in the preceding section, as for instance those in nos. 363, 364, showing that love and wisdom, and consequently the will and intellect, constitute a person's very life; in no. 365, showing that a person's life exists in its first elements in the brain, and in its derivative elements in the body; in no. 366, showing that as life is in its first elements, so it is in the whole and in every part of that whole; in no. 367, showing that life through those first elements is present from every part in the whole, and from the whole in every part; and in no. 368, showing that the character of the love determines the character of the wisdom, and so the character of the person.