Bakht Singh emphasizes the importance of prayer, humility, and obedience in rebuilding our spiritual lives, drawing parallels between the Israelites' return from Babylonian captivity and the current state of believers. He highlights Nehemiah's deep concern for Jerusalem's desolation, which led him to pray fervently and confess sins, urging believers to do the same to restore their relationship with God. Singh stresses that true revival comes from recognizing our spiritual barrenness and actively participating in God's work, despite opposition and ridicule. He encourages believers to trust in God's promises and to work together in unity, as Nehemiah did, to rebuild their spiritual walls and fulfill God's purpose. Ultimately, the sermon calls for a collective effort to remove spiritual rubbish and to rely on prayer as a powerful weapon against adversity.