Summary
Seneca warns that allowing our fears to control us can make life unbearable and endless in its suffering. He emphasizes that if we let fear dominate our thoughts and actions, it will prevent us from living a fulfilling life and exacerbate our miseries. The quote highlights the destructive power of fear when it is not managed or overcome.

Interpretation
In practical terms, this means recognizing that fear often magnifies our challenges and limits our potential. For someone familiar with Stoic teachings, this reinforces the idea that fear is not an inherent barrier but a mental obstacle that can be addressed. By confronting and managing our fears, we can reduce their hold over us and lead a more courageous and satisfying life. This approach encourages facing fears directly rather than letting them dictate our actions, thereby opening up opportunities for personal growth and resilience.