In Section 28 of Mahmud Shabestari's Golshan-e Raz, the epistemological limitation of human reason ('aql) is illustrated through the parable of a man born blind. Just as a blind person cannot comprehend colors (such as white, yellow, red, or green) despite receiving logical proofs or explanations, human reason remains metaphorically blind to the realities of the Hereafter and divine mysteries. To perceive these hidden secrets, humans must awaken a higher faculty beyond reason: spiritual intuition or witnessing (shuhud). Shabestari compares this latent intuitive capacity to the fire hidden within flint and steel—once sparked, its light illuminates both the material and spiritual worlds.