Such as is The Love in Man, Such is The Wisdom and Such is The Use

Thoughts from Divine Love and Wisdom ~ Emanuel Swedenborg

Spiritual light flows in with man through degrees, but not spiritual heat, except so far as man flees from evils as sins and looks to the Lord.

... from the sun of heaven, which is the first proceeding of Divine Love and Divine Wisdom, light and heat proceed - light from its wisdom, and heat from its love; also that light is the receptacle of wisdom, and heat of love; also that so far as man comes into wisdom he comes into that Divine light, and so far as he comes into love he comes into that Divine heat. ... there are three degrees of light and three degrees of heat, that is, three degrees of wisdom and three degrees of love, and that these degrees have been formed in man in order that he may be a receptacle of the Divine Love and the Divine Wisdom, thus of the Lord.
... ...
... spiritual light flows in through these three degrees in man, but not spiritual heat, except so far as man shuns evils as sins and looks to the Lord - or, what is the same, that man is able to receive wisdom even to the third degree, but not love, unless he flees from evils as sins and looks to the Lord; or what is still the same, that man's understanding can be raised into wisdom, but not his will, except so far as he flees from evils as sins.

... the understanding can be in spiritual light even when the will is not in spiritual heat; and from this it also follows that the understanding does not lead the will, or that wisdom does not beget love, but only teaches and shows the way, - teaching how a man ought to live, and showing the way in which he ought to go. It further follows that the will leads the understanding, and causes it to act as one with itself; also that whatever in the understanding agrees with the love which is in the will, the love calls wisdom. In what follows it will be seen that the will does nothing by itself apart from the understanding, but does all that it does in conjunction with the understanding; moreover, that it is the will that by influx takes the understanding into partnership with itself, and not the reverse.

... in respect to wisdom, man can be raised even into the third degree. Nevertheless these forms are not opened except when spiritual heat conjoins itself to spiritual light, that is, love to wisdom; by such conjunction these transparent forms are opened according to degrees. ...
This spiritual heat is obtained only by fleeing from evils as sins, and at the same time looking to the Lord; for so long as man is in evils he is also in the love of them, for he lusts after them; and the love of evil and the lust, abide in a love contrary to spiritual love and affection; and such love or lust can be removed only by fleeing from evils as sins; and because man cannot flee from evils from himself, but only from the Lord. He must look to the Lord. So when he flees from evils from the Lord, the love of evil and its heat are removed, and the love of good and its heat are introduced in their stead, whereby a higher degree is opened; for the Lord flowing in from above opens that degree, and then conjoins love, that is, spiritual heat, to wisdom or spiritual light, from which conjunction man begins to flourish spiritually, like a tree in spring-time.

(Divine Love and Wisdom 241 - 246)

The Quality of the Natural Mind

Selection from Divine Love and Wisdom ~ Emanuel Swedenborg

(1) The natural mind may be raised up to the light of heaven in which angels are, and may perceive naturally, thus not so fully, what the angels perceive spiritually; nevertheless, man's natural mind cannot be raised into angelic light itself.

(2) By means of his natural mind, raised to the light of heaven, man can think, yea, speak with angels; but the thought and speech of the angels then flow into the natural thought and speech of the man, and not conversely; so that angels speak with man in a natural language, which is the man's mother tongue.

(3) This is effected by a spiritual influx into what is natural, and not by any natural influx into what is spiritual.

(4) Human wisdom, which so long as man lives in the natural world is natural, can by no means be raised into angelic wisdom, but only into some image of it. The reason is, that elevation of the natural mind is effected by continuity, as from shade to light, or from grosser to purer. Still the man in whom the spiritual degree has been opened comes into that wisdom when he dies; and he may also come into it by a suspension of bodily sensations, and then by an influx from above into the spiritual parts of his mind.

(5) Man's natural mind consists of spiritual substances, together with natural substances; thought comes from its spiritual substances, not from its natural substances; these recede when the man dies, while its spiritual substances do not. Consequently, after death, when man becomes a spirit or angel, the same mind remains in a form like that which it had in the world.

(6) The natural substances of that mind, which recede (as was said) by death, constitute the cutaneous covering of the spiritual body which spirits and angels have. By means of such covering, which is taken from the natural world, their spiritual bodies maintain existence; for the natural is the outmost containant: consequently there is no spirit or angel who was not born a man. ...

(Divine Love and Wisdom 257)

Man Ability to be Elevated Rationally in Three Degrees

Selection from Divine Love and Wisdom ~ Emanuel Swedenborg

Every man is born into a capacity to understand truths even to the inmost degree in which the angels of the third heaven are; for the human understanding, rising up by continuity around the two higher degrees, receives the light of their wisdom .... Therefore man has the ability to become rational according to his elevation; if raised to the third degree he becomes rational from that degree, if raised to the second degree he becomes rational from that degree, if not raised he is rational in the first degree. It is said that he becomes rational from those degrees, because the natural degree is the general receptacle of their light. The reason why man does not become rational to the height that he might is, that love, which is of the will, cannot be raised in the same manner as wisdom, which is of the understanding. Love, which is of the will, is raised only by fleeing from evils as sins, and then by goods of charity, which are uses, which the man thereafter performs from the Lord. Consequently, when love, which is of the will, is not at the same time raised, wisdom, which is of the understanding, however it may have ascended, falls back again down to its own love. Therefore, if man's love is not at the same time raised into the spiritual degree, he is rational only in the lowest degree. From all this it can be seen that man's rational is in appearance as if it were of three degrees, a rational from the celestial, a rational from the spiritual, and a rational from the natural; also that rationality, which is the capacity whereby man is elevated, is still in man whether he be elevated or not.

[It has been said that every man is born into that capacity, namely, rationality, but by this is meant every man whose externals have not been injured by some accident, either in the womb, or by some disease after birth, or by a wound inflicted on the head, or in consequence of some insane love bursting forth, and breaking down restraints. In such the rational cannot be elevated; for life, which is of the will and understanding, has in such no bounds in which it can terminate, so disposed that it can produce outmost acts according to order; for life acts in accordance with outmost determinations, though not from them. That there can be no rationality with infants and children. ...]

(Divine Love and Wisdom 258 - 259)