The quote from Rick Riordan's "The Lost Hero" emphasizes the importance of moving forward and not getting stuck in the past. It suggests that dwelling on negative experiences can lead to feelings of sadness, and to combat this, one must keep moving and growing. Staying in one place, whether emotionally or physically, can hinder one’s ability to cope with life’s challenges.

This advice serves as a reminder that change and progression are vital for emotional well-being. By constantly seeking new experiences and perspectives, individuals can prevent sadness from taking hold. The message encourages proactive engagement with life and underscores the value of resilience in overcoming darker moments.