Summary
This quote suggests that in order to have an impenetrable shield, one should rely on their inner strength and resilience. By standing inside oneself, it implies finding stability and support from within, rather than depending on external factors or opinions. It encourages self-confidence, self-awareness, and self-reliance as the means to protect oneself from the challenges and negativity that may come from the outside world. In essence, it promotes the idea that true strength and protection come from within oneself.