John Nelson Darby emphasizes the necessity of nurturing an awakened soul through the Word of God, noting that initial feelings of conversion must be sustained by Christ to prevent spiritual weakness. He acknowledges the role of ministry in feeding the soul rather than merely focusing on initial emotional responses. Darby also discusses the validity of conversions that occur through singing, asserting that the Spirit can work through truth expressed in hymns. He highlights that while the foundation of faith may not be as solid at first, even a small encounter with Christ can lead to genuine spiritual awakening. Ultimately, he trusts that God will complete His work in the hearts of believers.