Love is the condition in which the happiness of another person is essential to your own.... Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love the greater the jealousy.
Love is the extra effort we make in our dealings with those whom we do not like and once you understand that, you understand all. This idea that love overtakes you is nonsense. This is but a polite manifestation of sex. To love another you have to undertake some fragment of their destiny.