Watchman Nee emphasizes the importance of local churches and the spiritual unity among workers in the body of Christ. He explains that while churches in Scripture are independent and local, workers are called to associate and collaborate under the guidance of the Holy Spirit, forming groups without official organization. Nee highlights that the work of God should focus on establishing local churches rather than creating denominational branches, as true cooperation among workers is rooted in a shared commitment to the Body of Christ. He warns against the dangers of both individualism and man-made organizations, advocating for a spiritual fellowship that reflects the unity of the Body. Ultimately, the goal is to build up local expressions of the Church, ensuring that all efforts are aligned with God's will and purpose.