Watchman Nee emphasizes the distinction between spiritual power and psychic force, warning against the deceptive signs and wonders that may arise in the last days. He highlights the importance of discerning the source of power in ministry, advocating for reliance on the Holy Spirit rather than human abilities or soul power. Nee illustrates how many church practices, such as emotional revivals and music, can often stem from the soul rather than the spirit, leading to temporary effects rather than lasting spiritual growth. He calls believers to lay down their own strengths and talents, allowing God to work through them, as true power comes from the Spirit alone. Ultimately, he stresses that only the spirit can impart life, while the soul, despite being alive, cannot bring true transformation.