Purusa means God or Krishna. Atma, there is Paramatma and jivatma. Both are atma because they are spiritual, but the living entities are called jivatma.

Jivatma means the small particle of atma which has tendency to fall down in the material atmosphere. He is called jivatma. And Atma or Super soul, Who never falls in material contamination, is called Paramatma or Super soul. And because He does not fall under material illusion, His other name is Achyuta — Achyuta means never fallen.
- Correspondence, Los Angeles, November 1968

  The Super soul and soul both are unchanged. The difference is that in material contact, the soul appears to be changed. But the Super soul is not affected by material contamination; therefore there is no sign of change. The change of soul is like that water becomes ice in contact with refrigerator. And as soon as there is temperature, the ice again becomes water. Similarly the changing nature of the soul is just like change of water to ice. The tendency of ice is to melt and become water again. So due to contamination of matter, the soul by illusion identifies with material existence.

But the tendency is to melt again to Krishna Consciousness. So when there is sufficient temperature in contact with bona fide Spiritual Master and devotees, the soul again becomes Krishna Conscious, like the water.
  - Correspondence, Los Angeles, November 1968

Simply our prayer should be, My dear Krishna, please remind me to always chant Your Holy Name, please do not put me into forgetfulness. You are sitting within me as Super soul, so you can put me into forgetfulness or into remembering You. So please do not put me into forgetfulness. Please always remind me to chant, even You send me into the hell, it doesn't matter, just so long as I can always chant Hare Krishna.
  - Correspondence, Los Angeles, November 1968

Many men come here and by their talents, earn huge amounts of money, but it remains here, he goes alone with his works only to accept another different kind of body, forgetting everything behind. But if he acquires some spiritual assets it goes with him, and even if  it is not perfect in this life, it begins again from that point in next life.
- Correspondence, Los Angeles, November 1968

When we remember to always have unflinching faith in the spiritual master and the message of Krishna, we are automatically freed from the attack of Maya. In the material concept also everyone is trying to avoid the onslaughts of Maya but without any success. To the sincere devotee, however, this ocean of Maya is easily crossed by the cool breeze of Krishna's Grace.
- Correspondence, Los Angeles, November 1968

The more one understands that Krishna is my friend and my duty is to serve my Dearest Friend, the more one can know that he is advancing in Krishna Consciousness.
- Correspondence, Los Angeles, November 1968

When we keep our association with Krishna, every activity is proper and liberating but if we should dissociate ourselves from the Lord's Mercy then like a hand which is severed from the body we become ugly and useless.
- Correspondence, Los Angeles, November 1968