This concept explores the spiritual condition described by Attar where the seeker encounters a 'pain that has no cure' (dard-e bi-darman) and a 'path that has no end' (rah-e bi-payan). Within the 'arduous valley' (vadi-ye sa'b), the 'bewildered heart' (del-e sargashteh) realizes that the mystical journey is an infinite descent into suffering and wonder, where the pursuit of divine secrets leads not to certainty but to a perpetual state of longing and annihilation of the self's boundaries.