The divine life is not knowledge, doctrines, or anything else but the Spirit. The letter kills, but the Spirit gives life. As the Redeemer, Christ Himself became a life-giving Spirit. We receive Christ as the Savior, the Redeemer, and also as the life-giving Spirit. He alone gives us the Spirit of life. In order to receive life, we need to contact the Spirit as the pneuma by breathing Him in.
Romans 8:2 says, "The law of the Spirit of life has freed me in Christ Jesus from the law of sin and of death." The Spirit is the releasing Spirit who sets us free. Second Corinthians 3:17 says, "The Lord is the Spirit; and where the Spirit of the Lord is, there is freedom." This law of life releases us from Moses' law, the law of sin and of death. The function of the law is to expose transgressions. Without the law, we would not know what sin is. But whenever our heart turns to the Lord, who is the releasing Spirit, the veil is taken away. The mind set on the spirit is life. By setting our mind on the spirit, spontaneously the divine life sets us free.