The passage highlights the concept of willpower and its significance in personal development. It suggests that despite our indulgences and distractions, our will can still operate and influence our growth. This idea draws a parallel between the gradual opening of our will and a physical gap present in infants that gradually closes as they mature.

The "gap" referenced symbolizes the potential and capacity within us that expands as we actively cultivate our will. As individuals strengthen their willpower, they open themselves up to greater possibilities and understandings, akin to how a child's soft spot eventually becomes a solid part of their skull. This process of developing one's will is essential for personal evolution.