In "The Sheltering Sky," Paul Bowles presents a metaphor comparing life to a cliff, emphasizing the importance of moving forward without glancing back. This imagery suggests that the journey of life is filled with challenges and uncertainties, much like the difficulty of climbing a steep cliff. Looking back can lead to fear, doubt, and distraction, preventing individuals from focusing on their ascent and future possibilities.

The quote encourages a mindset of resilience and determination, urging people to embrace their path without being hindered by past experiences or regrets. The act of climbing symbolizes personal growth and the pursuit of understanding, while the inability to look back signifies the necessity of staying present and motivated as one navigates life's complexities.