In Saul Bellow's book "Ravelstein," the idea is presented that yearning is an essential aspect of the human experience. A soul lacking desire is viewed as flawed and impoverished, unable to reach its full potential or find true fulfillment. This longing is deemed vital for a rich and meaningful existence.

The quote highlights the detrimental effects of a life devoid of aspirations and emotional depth, suggesting that longing is what drives individuals to seek their highest good. Without it, a person's spiritual and emotional health deteriorates, leading to a life that feels incomplete and ultimately, lifeless.