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 Krsna. Mamaivamso jiva-bhuta [Bg. 15.7]. So as part and parcel, our position is to live with Krsna. 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.
Lecture on Bhagavad-gita 1.21-22, London, 18 July, 1973