some object to be known (residing in the foremost part of the brain), which
he misconceiving or amplifying presently communicates to the heart, the
seat of all affections. The pure spirits forthwith flock from the brain to
the heart, by certain secret channels, and signify what good or bad object
was presented; [1596]which immediately bends itself to prosecute, or avoid
it; and withal, draweth with it other humours to help it: so in pleasure,
concur great store of purer spirits; in sadness, much melancholy blood; in
ire, choler. If the imagination be very apprehensive, intent, and violent,
it sends great store of spirits to, or from the heart, and makes a deeper
impression, and greater tumult, as the humours in the body be likewise
prepared, and the 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