Krishna describes the physical (or rather, spiritual) properties of His ultimate destination (tad dhāma paramaṁ mama). He states that this supreme realm does not require external sources of illumination—neither the sun (sūryo), the moon (śaśāṅko), nor fire/electricity (pāvakaḥ) illuminate it. Furthermore, He repeats the ultimate guarantee: once a soul reaches this self-luminous realm (yad gatvā), they never return to the dark, temporary material world (na nivartante).