All human beings have issues of scarcity. Everyone goes through an experience of scarcity. At that time you may experience the universe as a place where there are no resources available to you, within or without. The different ways human beings come to isolation in their egos are caused by the particular kinds of experiences of scarcity.
Painful experiences of scarcity coagulate into a defining attitude of self, an attitude that is based on a sense of deficiency. There may have been scarcity in the environment you grew up in, or in your relationship with your mother, for example. This has led you to experience the universe as a place that lacks what you need. You don't know how to really be grateful because you are identified with being needy.
— Wali Ali Meyer, Bilal Hyde, Faisl Mugaddam, Sharda Kahn, Physicians of the Heart