Krishna alone is acyuta—the infallible controller—while all souls are fallen when separated from His loving service.Listen — Srila Prabhupada Uvaca
Bhagavad-gītā 1.21–22 — July 18, 1973, London 730718BG-LONDON [42:31 Minutes] Bg-01.21–22_730718BG-LONDON Pradyumna: Oṁ namo bhagavate vāsudevāya. Oṁ namo bhagavate vāsudevāya. [Prabhupāda and devotees repeat] [leads chanting of verse] arjuna uvāca senayor ubhayor madhye rathaṁ sthāpaya me 'cyuta yāvad etān nirīkṣe 'haṁ yoddhu-kāmān avasthitān kair mayā saha yoddhavyam asmin raā-samudyame [Bg. 1.21-22] [break] [leads chanting of synonyms] arjunaḥ—Arjuna; uvāca—said; senayoḥ—of the armies; ubhayoḥ—of both the parties; madhye—in between them; ratham—the chariot; sthāpaya—please keep; me—my; acyuta—O infallible one; yāvat—as long as; etān—all these; nirīkṣe—may look; aham—I; yoddhu-kāmān—desiring to fight; avasthitān—arrayed on the battlefield; kaiḥ—with whom; mayā—by me; saha—with; yoddhavyam—to fight with; asmin—in this; raṇa—strife; samudyame—in the attempt. [03:51] Translation: "Arjuna said: O infallible one, please draw my chariot between the two armies so that I may see who is present here, who is desirous of fighting, and with whom I must contend in this great battle attempt." Prabhupāda: Hm.
Senayor ubhayor madhye rathaṁ sthāpaya me acyuta [Bg. 1.21]. Before this, Kṛṣṇa was addressed as Hṛṣīkeśa. Hṛṣīkeśa we have explained. Now Kṛṣṇa is addressed here Acyuta.
Cyuta means fallen, and acyuta means not fallen. Just like we are fallen. We are fallen conditioned souls. In this material world we have come with a enjoying spirit.
Therefore we are fallen. If one keeps his position rightly, he does not fall. Otherwise he is degraded. That is fallen condition. So all the living entities within this material world, beginning from Brahmā down to the small, insignificant ant, they are all fallen, fallen conditioned souls.
Why they are fallen? kṛṣṇa bhuliya jīva bhoga vañcha kare pāśate māyā tāre jāpaṭiyā dhare [Prema-vivarta 6.2] Fallen means when the living entities are under the clutches of this material energy. That is called fallen. Just like a man, when he is under police custody, it is to be understood that he is a criminal, he is fallen. He has fallen down from good citizenship.
Similarly, we are all parts and parcels of Kṛṣṇa. Mamaivāṁśo jīva-bhuta [Bg. 15.7]. So as part and parcel, our position is to live with Kṛṣṇa. Just like this is my finger, part and parcel of my body.
The finger must remain attached with this body. When this finger is cut off and fallen, although it is finger, it is no longer as important as it was formerly, when it was attached with this body. So anyone who is not attached with the service of the Supreme Lord, he is fallen. This is the conclusion. But Kṛṣṇa is not fallen.