temperature itself ill or well disposed, the passions are longer and stronger; so that the first step and fountain of all our grievances in this kind, is [1597]laesa imaginatio, which misinforming the heart, causeth all these distemperatures, alteration and confusion of spirits and humours. By means of which, so disturbed, concoction is hindered, and the principal parts are much debilitated; as [1598]Dr. Navarra well declared, being consulted by Montanus about a melancholy Jew. The spirits so confounded, the nourishment must needs be abated, bad humours increased, crudities and thick spirits engendered with melancholy blood. The other parts cannot perform their functions, having the spirits drawn from them by vehement passion, but fail in sense and motion; so we look upon a thing, and see it not; hear, and observe not; which otherwise would much affect us, had we been free. I may therefore conclude with [1599]Arnoldus, Maxima vis est phantasiae, et huic uni fere, non autem corporis intemperiei, omnis melancholiae causa est ascribenda: Great is the force of imagination, and much more ought the cause of melancholy to be ascribed to this alone, than to the distemperature of the body. Of which imagination, because it hath so great a stroke in producing this malady, and is so powerful of itself, it will not be improper to my discourse, to make a brief digression, and speak of the force of it, and how it causeth this alteration. Which manner of digression, howsoever some dislike, as frivolous and impertinent, yet I am of [1600]Beroaldus's opinion, Such digressions do mightily delight and refresh a weary reader, they are like sauce to a bad stomach, and I do therefore most willingly use them. SUBSECT. II.—_Of the Force of Imagination_.