Proof.—The mind does not conceive anything under the form of eternity, except in so far as it conceives its own body under the form of eternity (V. xxix.); that is, except in so far as it is eternal (V. xxi. xxiii.); therefore (by the last Prop.), in so far as it is eternal, it possesses the knowledge of God, which knowledge is necessarily adequate (II. xlvi.); hence the mind, in so far as it is eternal, is capable of knowing everything which can follow from this given knowledge of God (II. xl.), in other words, of knowing things by the third kind of knowledge (see Def. in II. xl. note. ii.), whereof accordingly the mind (III. Def. i.), in so far as it is eternal, is the adequate or formal cause of such knowledge. Q.E.D.
Note.—In proportion, therefore, as a man is more potent in this kind of knowledge, he will be more completely conscious of himself and of God; in other words, he will be more perfect and blessed, as will appear more clearly in the sequel. But we must here observe that, although we are already certain that the mind is eternal, in so far as it conceives things under the form of eternity, yet, in order that what we wish to show may be more readily explained and better understood, we will consider the mind itself, as though it had just begun to exist and to understand things under the form of eternity, as indeed we have done hitherto; this we may do without any danger of error, so long as we are careful not to draw any conclusion, unless our premisses are plain.
PROP. XXXII. Whatsoever we understand by the third kind of knowledge, we take delight in, and our delight is accompanied by the idea of God as cause.
Proof.—From this kind of knowledge arises the highest possible mental acquiescence, that is (Def of the Emotions, xxv.), pleasure, and this acquiescence is accompanied by the idea of the mind itself (V. xxvii.), and consequently (V. xxx.) the idea also of God as cause. Q.E.D.
Corollary.—From the third kind of knowledge necessarily arises the intellectual love of God. From this kind of knowledge arises pleasure accompanied by the idea of God as cause, that is (Def. of the Emotions, vi.), the love of God; not in so far as we imagine him as present (V. xxix.), but in so far as we understand him to be eternal; this is what I call the intellectual love of God.
PROP. XXXIII. The intellectual love of God, which arises from the third kind of knowledge, is eternal.
Proof.—The third kind of knowledge is eternal (V. xxxi. I. Ax. iii.); therefore (by the same Axiom) the love which arises therefrom is also necessarily eternal. Q.E.D.
Note.—Although this love towards God has (by the foregoing Prop.) no beginning, it yet possesses all the perfections of love, just as though it had arisen as we feigned in the Coroll. of the last Prop. Nor is there here any difference, except that the mind possesses as eternal those same perfections which we feigned to accrue to it, and they are accompanied by the idea of God as eternal cause. If pleasure consists in the transition to a greater perfection, assuredly blessedness must consist in the mind being endowed with perfection itself.
PROP. XXXIV. The mind is, only while the body endures, subject to those emotions which are attributable to passions.
Proof.—Imagination is the idea wherewith the mind contemplates a thing as present (II. xvii. note); yet this idea indicates rather the present disposition of the human body than the nature of the external thing (II. xvi. Coroll. ii.). Therefore emotion (see general Def. of Emotions) is imagination, in so far as it indicates the present disposition of the body; therefore (V. xxi.) the mind is, only while the body endures, subject to emotions which are attributable to passions. Q.E.D.