• sarva-loka-īśvara-īśvaraḥ — the controller of all controllers of all worlds
  A triple-layered compound — Bhagavān is īśvara of īśvaras of all lokas. And yet this triple-īśvara rises and bows. The grammar amplifies the humility into something cosmic.
• vavanda — offered respects
  Vand — to praise, to bow, to honour. Kṛṣṇa Himself uses it toward His devotee. The whole vandana-aṅga of bhakti (one of the nine limbs) is given a cosmic example: even the One who is bowed to bows.
• śīrṣṇā — with His head
  He bows with His own head — the supreme limb. In Vaiṣṇava liturgy, śīrṣa-praṇāma (touching the head to the ground) is the most complete obeisance. Kṛṣṇa offers it to Nārada.
• utthitaḥ — having stood up
  Standing for a guest is a Vedic householder discipline. Kṛṣṇa, who needs to stand for no one, stands. Every Vaiṣṇava-gṛhastha who rises for an arriving devotee re-enacts this moment.

• Whose arrival do I joyfully rise for, and whose do I begrudge?
• Where could real joy at someone's coming reset a relationship?

Kṛṣṇa rising from His throne with His ministers to bow His head to Nārada is the sun standing up for one of its rays. He is sarva-loka-īśvara-īśvara — controller of every controller — and yet He rises. Bhakti's deepest grammar: the Lord honours His own devotee more than Himself.