1. Every blessing of God for the believer is packaged in the Holy Ghost. Rom14:17
2. The spirit of man is the conduit through which God transmits these blessings. Rom8:14
3. The highest level of fellowship with God can only be done through the human spirit and the Holy Spirit because it is the only faculty that knows everything about a man it is the Spirit of God that knows everything about God. 1 Corinthians 2:11 Rom8:26.
4. Fellowship in the Spirit connects the relevant areas of our lives that needs work with relevant solutions in God. Php2:12-13