D.L. Moody shares a personal story about his son who initially dreaded Sundays, reflecting on his own childhood experiences with the day. He emphasizes the importance of making Sunday an attractive and enjoyable day for children, rather than one to be feared. Moody praises mothers for their vital role in teaching their children about God, encouraging them to present Bible stories in engaging ways. Through his wife's efforts, the boy's attitude towards Sunday transformed from dread to joy, illustrating the power of nurturing faith in children. The sermon highlights the significance of creating a positive environment around spiritual teachings.