There are plenty of references on how Swami Vivekananda defines love. This particular graphic / poster which I have made is from what I have heard and understood from “Para-Bhakti or Supreme Devotion, The Triangle of Love”. I would like to elaborate further on what these angles mean in reality than just mere sentences.
According to Swami Vivekananda
We may represent love as a triangle, each of the angles of which corresponds to one of its inseparable characteristics. There can be no triangle without all its three angles; and there can be no true love without its three following characteristics.
One side - Love never begs.
Do you ask anything from your children in return for what you have given them? It is your duty to work for them, and there the matter ends. In whatever you do for a particular person, a city, or a state, assume the same attitude towards it as you have towards your children — expect nothing in return. If you can invariably take the position of a giver, in which everything given by you is a free offering to the world, without any thought of return, then will your work bring you no attachment. Attachment comes only where we expect a return…. (more)
The first angle of our triangle of love is that love knows no bargaining. Wherever there is any seeking for something in return, there can, be no real love; it becomes a mere matter of shop-keeping… (more)
Second side - Love never fears
The second angle of the triangle of love is that love knows no fear. Those that love God through fear are the lowest of human beings, quite undeveloped as men. They worship God from fear of punishment. He is a great Being to them, with a whip in one hand and the sceptre in the other; if they do not obey Him, they are afraid they will be whipped. It is a degradation to worship God through fear of punishment; such worship is, if worship at all, the crudest form of the worship of love. So long as there is any fear in the heart, how can there be love also? Love conquers naturally all fear… (more)
Third side - Love knows no rival
The third angle of the love-triangle is that love knows no rival, for in it is always embodied the lover’s highest ideal. True love never comes until the object of our love becomes to us our highest ideal. It may be that in many cases human love is misdirected and misplaced, but to the person who loves, the thing he loves is always his own highest idea. One may see his ideal in the vilest of beings, and another in the highest of beings; nevertheless, in every case it is the ideal alone that can be truly and intensely loved. The highest ideal of every man is called God… (more)