Love is a feeling which has a different kind of attitude. This is a bond between two people of any caste, any religion and any gender. This bond can be between a mother and a baby, a bond between mother and father, et cetera.
This is a very strong bond and it the components of love is also very strong by behavior as well.
This phenomenon can take place in any of the two people or multiple who love each other. This bond is not something which can be explained using words.