siddha-lokas tu tamasaḥ
pÄre yatra vasanti hi
siddhÄ brahma-sukhe magnÄ
daityÄÅ› ca hariá¹‡Ä hatÄḥ
siddha-lokaḥ - Siddhaloka, or impersonal Brahman; tu - but; tamasaḥ - of darkness; pÄre - beyond the jurisdiction; yatra - where; vasanti - reside; hi - certainly; siddhÄḥ - the spiritually perfect; brahma-sukhe - in the transcendental bliss of becoming one with the Supreme; magnÄḥ - absorbed; daityÄḥ ca - as well as the demons; hariá¹‡Ä - by the Supreme Personality of Godhead; hatÄḥ - killed.
Tamas means darkness. The material world is dark, and beyond the material world is light. In other words, after passing through the entire material atmosphere, one can come to the luminous spiritual sky, whose impersonal effulgence is known as Siddhaloka. MÄyÄvÄdÄ« philosophers who aspire to merge with the body of the Supreme Personality of Godhead, as well as demoniac persons who are killed by Kṛṣṇa, such as Kaá¹sa and ÅšiÅ›upÄla, enter that Brahman effulgence. YogÄ«s who attain oneness through meditation according to the Patañjali yoga system also reach Siddhaloka. This is a verse from the BrahmÄṇá¸a PurÄṇa.