Is there a difference between Arjuna's body and his soul, and how does this apply to all Krishna's eternally liberated souls described in the scriptures. Is Arjuna always the same in his appearances with Krishna or is a new soul taking his body each time?

Expressions researched:
"Is there a difference between Arjuna's body and his soul, and how does this apply to all Krishna's eternally liberated souls described in the scriptures. Is Arjuna always the same in his appearances with Krishna or is a new soul taking his body each time"

1968 Correspondence

Yes, there is difference. Therefore he forgets his past activities. Just like we forget ourselves while dreaming because our subtle body acts at that time differently from the gross body. Similarly, by changing this body or transmigrating from one body to another, we forget all the activities of our previous body. The associates of the Lord, even though they have a different body, or even though they forget the activities of their past body, still they are associates of the Lord.

Letter to Aniruddha -- Los Angeles 14 November, 1968:

Your next question, "Is there a difference between Arjuna's body and his soul, and how does this apply to all Krishna's eternally liberated souls described in the scriptures. Is Arjuna always the same in his appearances with Krishna or is a new soul taking his body each time?" Yes, there is difference. Therefore he forgets his past activities. Just like we forget ourselves while dreaming because our subtle body acts at that time differently from the gross body. Similarly, by changing this body or transmigrating from one body to another, we forget all the activities of our previous body. The associates of the Lord, even though they have a different body, or even though they forget the activities of their past body, still they are associates of the Lord. These explanations are given in the Bhagavad-gita as it is.