I (the Supreme) am specially in Ananta among the Nagas; in Varuna among water beings. I am Aryama among the manes, and amidst all controllers, I am Yama (the Lord of death).
Krishna names an assortment of additional special manifestations. Ananta has unparalleled fame, as the cool, comfortable, soft bed for Lord Vishnu. Varuna of Vedic fame is the bestower of rains, which determine the fortune of agriculture and farming.
Manes, departed souls, are arrayed with Devas and Rishis, while giving our periodical offerings. Every generation is born of the preceding ones, and will be joining them at the end of the earthly sojourn. Any extent of gratitude in this regard will not be excess. Aryama has a famed place in the Vedas.
Yama, the Lord of death, represents the unsurmountable law enforcing order. Also, yama as the first limb in yogasādhanā, represents self-restraint, which is far more effective than any imposed external disciplines. Senses in the body pull one constantly to external objects, often resulting in indiscipline and downfall. Yama restrains this unruliness.