Watchman Nee emphasizes the three critical aspects of prayer: our personal needs, the nature of God, and the opposition from Satan. He explains that while prayer often addresses our own interests, it should also seek God's glory and fulfill His will, which ultimately leads to the defeat of Satan. Genuine prayer is not just about personal gain but about inflicting loss on the enemy and advancing God's kingdom. Nee encourages believers to consider all three aspects in their prayers, as neglecting any one of them diminishes the effectiveness of their communication with God. The true measure of prayer's success lies in how it glorifies God and thwarts the plans of Satan.