A.W. Tozer emphasizes the urgency of living each day to its fullest, recognizing the inevitability of death and the uncertainty of life. He reflects on the 'sleeping saints' and the reality that any of us could join them at any moment. Tozer urges listeners to prepare for the future by taking action today, whether it be making amends, expressing love, or fulfilling responsibilities. The sermon calls for a proactive approach to life, encouraging individuals to seize the day and not postpone what truly matters.