This quote implies that spiritual or inner strength increases as one gains control over their physical desires and impulses. It suggests a direct correlation between the discipline of the body and the growth of the soul. The ‘flesh’ here symbolizes physical or material desires and urges, while the ‘soul’ represents our inner self, our spiritual and moral compass. The more we subdue our physical wants, resist temptations and exercise self-control, the stronger our soul or inner self becomes.

In the context of personal development, this quote can be interpreted as advocating for self-restraint and discipline as key elements in nurturing our spiritual growth and moral strength. It’s about learning to prioritize the needs of our inner self over the wants of our physical self. This could manifest in various ways, such as resisting unhealthy food, abstaining from excessive material consumption, or practicing celibacy.

In today’s world, where consumerism and instant gratification are often encouraged, this quote can serve as a reminder of the value of self-discipline and restraint. It suggests that true strength and fulfillment don’t come from indulging our every desire, but from learning to control these desires and focusing on our spiritual growth instead.

For instance, in the realm of social media, it could mean resisting the urge to constantly check our feeds or post for validation, and instead, using that time for self-reflection or personal growth activities. In the context of environmental sustainability, it could mean curbing our consumption habits and making more conscious, ethical choices.

Overall, this quote is a call to shift our focus from the physical to the spiritual, from the external to the internal, and in doing so, cultivate a stronger, more resilient inner self.