Final answer:
The second stanza of 'We Grow Accustomed to the Dark' suggests that humans are adaptable and can navigate through challenges symbolized by darkness, even when the path isn't clear.
Step-by-step explanation:
The second stanza of We Grow Accustomed to the Dark explores the idea that humans adapt to changes and unknown situations, symbolized by darkness. The central idea conveyed is that of adjustment and finding a way even when the path is not clear. The darkness represents challenges or the unknown, and the process of adjustment speaks to the inherent human capability to acclimate to new conditions and navigate through them, despite initial struggles or uncertainty.