A profit is an improvement resulting from a transaction… examine whether the transaction of exchanging our souls to gain the world puts us in a better position eternally. Because in God's ledger only salvation… counts as profit; only work in the Kingdom of God brings in revenue; everything else is loss.
"I count all things but loss for the excellency of the knowledge of Christ Jesus my Lord." ~ Philippians 3:8
Spiritual knowledge of Christ will be a personal knowledge. I cannot know Jesus through another person's acquaintance with him. No, I must know him myself; I must know him on my own account.