In perhaps his most concise wisdom, Marcus captures the essence of mindful living. The present moment is the only time we can actually influence through our thoughts, decisions, and actions. The past is fixed and unchangeable, existing only in memory. The future is uncertain and largely beyond our control, existing only in imagination. Yet we often live everywhere except the present - ruminating about past mistakes or worrying about future problems. This mental time travel creates unnecessary suffering and prevents us from engaging fully with what's actually happening right now. By confining ourselves to the present, we reclaim our power, reduce anxiety, and open ourselves to life's immediate possibilities and beauty.