I have often struggled to define love. For example sometimes I do not know why I do certain things that most people would consider an act of love (I'm sure many people are also find it difficult to define love).
This morning whilst driving to work I got a new revelation of what love is. I know that it is a feeling/emotion, but it has never been revealed to me this way: love is a very deeply entrenched, powerful and long lasting mostly desired emotion / feeling which outlasts all other emotions/feelings and overpowers any reasoning. Hatred has the same force as love, but it is mostly undesirable.
Most feelings / emotions are well capable of overpowering reasoning, e.g. the thurst for drugs or alcohol can make you indulge even if your reasoning warns against it; last and sexual emotions can make you engage in risky behaviour even if your reasoning warns you against it; feelings of pity can make you give your lunch money to someone needy even if your reasoning tells you that you will go hungry.
Love feelings/emotions outlast all other emotions/feelings:
LET ME GET BACK TO WORK. I SHALL CONTINUE EXPLAINING MY REVELATION WHEN I FIND TIME