How or when does the clear stream of reason lose its way, according to the poet in the poem Where the Mind is Without Fear?
‘Reason’ or logical thinking is compared to a clear stream. But it can lose its way when it faces the challenges of age-old superstitions (compared to a dreary desert) and yield to those. We are often guided by our old beliefs. But the poet wants just the opposite. In short, the poet wishes that logic rules and wins over old habits.