• bhava-bhītānām — of those who are afraid of material existence
  Bhava = becoming, the cycle of birth and death. Bhīta = afraid. Gauḍīyas read this fear positively: the only fear worth having is fear of remaining inside saṁsāra — every other fear is misdirected.
• prapannānām — of those who have surrendered
  Pari of prapanna (v. 6). Once Nanda used it of himself in crisis; now Sudarśana uses it of the class to which he now belongs. Gauḍīyas track this transfer carefully: prapatti is contagious — Bhagavān saves one, and others nearby learn the word.
• bhaya-apaham — the remover of fear
  Bhaya (fear) + apaha (one who removes, from apa-√han). One of Bhagavān's most quoted names. He is mā-bhī-da — 'do not fear' — to His own. The chapter's twin verses (here and v. 28) install this title on either side of the Vidyādhara and the gopī episode.
• amīva-han — O destroyer of distress/sin
  Amīva (Vedic: affliction, disease, evil) + han (slayer, vocative). The same Vedic title given to Indra and to Viṣṇu — bhakti claims Vedic vocabulary for Kṛṣṇa. He kills not just enemies but the very category of distress.

• After Kṛṣṇa's grace lifts you, what 'post' are you meant to return to?
• Have you replaced active service with comfortable rest?

The freed soul, before flying back to his heaven, asks permission — not yet free of the foot's gravity, like a guest who, even after the host has waved him off, lingers at the doorway because the doorway is sweeter than the road home. Śaraṇāgati does not end at liberation; it begins there.