In her book "Why We Love," Helen Fisher explores the essential needs that humans have for food, water, and warmth, drawing a parallel to the emotional requirements of love. Just as we cannot survive without these basic necessities, Fisher argues that love is an equally vital component of human existence. Love is depicted as a fundamental drive that shapes our wants and desires.

Fisher references Plato's idea that love is rooted in a state of need, suggesting that our yearning for connection with a beloved is inherent to our nature. This perspective highlights the profound impact romantic love has on our lives, illustrating it as a natural force that influences our emotions and motivations. Through this lens, love is seen as essential for our well-being, akin to other basic human needs.