Watchman Nee emphasizes the critical role of the will in the relationship between God and humanity, asserting that both God and Satan require our consent to act in our lives. He explains that while the unsaved may be enslaved by Satan, they still possess the ability to choose, and it is essential for individuals to align their will with God's for divine empowerment. Nee warns against the dangers of a passive will, which can lead to being driven by external forces rather than guided by God's spirit. He illustrates the importance of maintaining control over one's spirit through the will, likening it to a kite string that keeps the kite steady. Ultimately, he encourages believers to actively seek and do God's will, following the example of Jesus.