When we speak about emotion of the love, everyone understands it in process of the experience of self feelings.
In the literature there are such examples, as the egoist love or love which receive as a gift, or the Divine love. Some people who have gone through clinical death, say about the meeting with the essence which radiates love and light. This energy of Love attracts us, so as a light attracts a butterflies.
How energy of love inf
Radiation of Love - Subtle energy of Love.