• prākāra — ramparts
  The defensive wall around a fortified city. Gauḍīya commentators read the asura's prākāra as the outer shell of false security the conditioned soul builds against Bhagavān — the very thing that must fall before śaraṇāgati can begin.
• ruṣā-āviṣṭaḥ — filled with anger
  Compound participle: ruṣā (with rage) + āviṣṭa (entered, possessed). Anger does not arise in Bāṇa; it enters him — the asura is occupied by his own krodha as a deity occupies a temple. The Gītā's diagnosis (2.62–63) made flesh.
• abhiniryayau — he went out
  Aorist of abhi + nis + √yā (to march out against). Bāṇa's mistake is to come out: as long as he stayed inside the city of his own pride, the wall sheltered him; the moment he steps out to meet Bhagavān as an equal, the loss has already been recorded.
• tulya-sainyaḥ — with an equal-sized army
  Compound: tulya (equal) + sainya (army). The asura's calculus is parity — twelve akṣauhiṇīs to twelve. Bhagavān will not be matched by counting; the verse sets up the lesson that numerical equality means nothing against the wielder of Śārṅga.

• Padaseva Pr SB 10-63-05 Oriya
  His Grace Padaseva Prabhu· Oriya

• What outer 'walls' of mine have recently come down, and was their fall really my enemy?
• How might I distinguish loss of ego-structures from real harm?

An asura's pride is built like a city wall — gardens, ramparts, watchtowers, gateways, each course of stone a fortification of false ego. When Kṛṣṇa's army cracks one stone, the demon roars; Bāṇa's anger here is the sound of ahaṅkāra being demolished from outside.