Love

Love is a condition or phenomenon of emotional primacy, or absolute value. Love generally includes an emotion of intense attraction to either another person, a place, or thing; and may also include the aspect of caring for or finding identification with those objects, including self-love. Love can describe an intense feeling of affection, an emotion or an emotional state. In ordinary use, it usually refers to interpersonal love, an experience usually felt by a person for another person. Love is commonly considered impossible to define.

The concept of love, however, is subject to debate. Some deny the existence of love. Others call it a recently invented abstraction, sometimes dating the "invention" to courtly Europe during or after the middle ages (though this is contradicted by the sizable body of ancient love poetry). Others maintain that love really exists, is not an abstraction, but is indefinable; being a quantity which is spiritual, metaphysical, or philosophical in nature. Some psychologists maintain that love is the action of lending one's "boundary" or "self esteem" to another. And others attempt to define love and apply the definition to everyday life.

Source: Wikipedia