• bhasma-sāt — reduced to ashes
  Same compound as verse 12 — ash-state. The chapter signals scene-change by reusing the phrase: the asura is now closed business; the devotee-darśana now opens.
• sātvata-ṛṣabhaḥ — the greatest hero of the Sātvatas
  Compound: sātvata (the clan of pure devotees, the Yadu-Vṛṣṇi lineage) + ṛṣabhaḥ (bull, greatest). A title prized in the Pāñcarātra tradition. Bhagavān reveals Himself not under His abstract names but under His clan-name — He is the chief of His own devotee-family.
• ātmānam — Himself
  Reflexive — His own self. Kṛṣṇa does not send a representative, a glow, a voice. He reveals ātman — His Person. Gauḍīyas treasure this verb-construction: darśayām āsa ātmānam — He caused His own Self to be seen.
• darśayām āsa — He revealed
  Periphrastic perfect of causative √dṛś — He made-seen. Darśana is something Bhagavān grants; it cannot be seized. The whole chapter has been one extended setup for the moment darśana becomes possible.
• dhī-mate — to the intelligent one
  Compound: dhī (intellect, wisdom) + mate (possessing). Mucukunda is dhī-mān because his mind, despite ages of sleep, immediately recognizes Bhagavān. Gauḍīyas read dhī here as buddhi steered toward Bhagavān — sat-buddhi, not mere intellect.

• Lilananda Pr SB 10-51-22-29 - 2014-10-09 ISKCON Alachua
  His Grace Lilananda Prabhu· 2014-10-09· English

• What 'Yavana' might need to burn away in your life before the Lord visibly reveals Himself?
• Where might He already be present, waiting for an obstacle to clear?

Once the rough work is done, the King steps into the antechamber and lifts the lamp Himself. With Kālayavana ash, Kṛṣṇa shows Himself to Mucukunda in His own form — dark blue, four-armed, smiling. The whole pursuit was scaffolding for this darśana.