Selection from Heaven and Hell ~ Emanuel Swedenborg
The love of self is wishing well to oneself alone, and to others only for the sake of self; even to the Church, one's country, or any human society. It consists also in doing good to all these solely for the sake of one's own reputation, honor, and glory; and unless these are seen in the uses he performs to others he says in his heart: "How does it concern me? Why should I do this? What shall I get from it?" And therefore he does not do it. Evidently, then, he who is in the love of self does not love the Church or his country or society, nor any use, but himself alone. His delight is solely the delight of the love of self — and as the delight that comes forth from his love is what makes the life of man, his life is a life of self — and a life of self is a life from man's proprium, and man's proprium, regarded in itself is nothing but evil. He who loves himself loves also those who belong to him, that is, in particular, his children and grandchildren, and in general, all who are at one with him, whom he calls his. To love them is to love himself; for he regards them as it were in himself and himself in them. Among those whom he calls his are also all who commend, honor, and pay their court to him.
The quality of the love of self can be confirmed from a comparison with heavenly love.
Heavenly love is loving uses for the sake of uses, or goods for the sake of goods, which are done by man for the Church, his country, human society, and a fellow-citizen; for this is loving God and loving the neighbor, since all uses and all goods are from God, and are the neighbor who is to be loved. But he who loves these for the sake of himself loves them merely as servants because they are serviceable to him. Consequently, it is the will of one who is in self-love that the Church, his country, human societies, and his fellow-citizens, should serve him, and not he them, for he places himself above them and places them beneath himself. Therefore, so far as anyone is in the love of self he separates himself from heaven, because he removes himself from heavenly love.
Furthermore, so far as anyone is in heavenly love, which is loving uses and goods and being moved by delight of heart when doing them for the sake of the Church, country, human society, and a fellow-citizen, he is so far led by the Lord, because that love is the love in which the Lord is, and which is from Him. But so far as anyone is in the love of self, which is performing uses and goods for the sake of himself so far he is led by himself and so far as anyone is led by himself he is not led by the Lord. And from this it also follows that so far as anyone loves himself he removes himself from the Divine, thus also from heaven.
To be led by one's self is to be led by one's proprium and man's proprium is nothing but evil.
Man's inherited evil is loving self more than God, and the world more than heaven. Whenever man looks to himself in the good that he does, he is let into his proprium, that is, into his inherited evils; for he then looks from goods to himself and not from himself to goods, and therefore he presents an image of himself in his goods, and not an image of the Divine. That this is so has also been proved to me by experience. There are evil spirits whose dwelling-places are in the middle quarter between the north and the west, beneath the heavens, who are skilled in the art of leading well-disposed spirits into their proprium and thus into evils of various kinds. This they do by leading them into thoughts about themselves, either openly by praises and honours, or secretly by directing their affections to themselves; and so far as this is done they turn the faces of the well-disposed spirits away from heaven, and to the same extent they obscure their understanding and call forth evils from their proprium.
That the love of self is the opposite of love towards the neighbor can be seen from the origin and essence of both.
The love of the neighbor with one who is in the love of self begins with oneself, for he claims that anyone is neighbor to oneself — it goes forth from him as its center to all who make one with him, diminishing in accordance with the degree of their conjunction with him by love. All outside of this circle are regarded as of no account; and those who are opposed to those in the circle and to their evils are accounted as enemies, whatever their character may be, however wise, upright, honest, or just. But spiritual love towards the neighbor begins with the Lord, and goes forth from Him as its center to all who are conjoined to Him by love and faith, going forth in accordance with the quality of the love and faith with them. So it is clear that the love of the neighbor that begins from man is the opposite of the love towards the neighbor that begins from the Lord. The former proceeds from evil because it proceeds from man's proprium, while the latter proceeds from good because it proceeds from the Lord, Who is Good Itself. It is clear also that the love of the neighbor that proceeds from man and his proprium is corporeal, while the love towards the neighbor that proceeds from the Lord is heavenly.
(from Heaven and Hell 556-558)