Love.

Love is an emotion involving strong attraction, affection, emotional attachment or concern for a person, animal, or thing. It is expressed in many forms, encompassing a range of strong and positive emotional and mental states, from the most sublime virtue, good habit, deepest interpersonal affection, to the simplest pleasure. An example of this range of meanings is that the love of a mother differs from the love of a spouse, which, in turn, differs from the love of food.