This quote suggests that the true core of religion is not found in its external manifestations, such as rituals, symbols, or even specific moral codes, but rather in the internal, spiritual transformation it brings about in individuals. The “external” refers to the tangible, visible aspects of religion that we can see, touch, or measure, while the “internal” refers to the intangible, personal, and spiritual experiences that can only be felt and understood within the heart and mind of the believer.

However, Gandhi also acknowledges that the external often serves as a reflection or proclamation of the internal. That is, the rituals, symbols, and behaviors associated with a particular religion can often provide important clues about the spiritual beliefs and values that lie beneath. They act as a language through which the internal spiritual experiences are communicated and shared with others.

In today’s world, this idea can be applied in many ways. For instance, in the context of interfaith dialogue, it suggests the importance of looking beyond the surface differences between religions to understand the shared spiritual values and experiences that they all seek to cultivate. It encourages us to focus not on what separates us, but on what unites us.

In terms of personal development, it reminds us that true growth and transformation come from within. External changes, such as adopting new habits or improving our appearance, can be important and beneficial, but they are not the essence of personal development. The real work lies in changing our internal attitudes, beliefs, and values. However, just as in religion, our external actions and behaviors can serve as a reflection of this internal transformation, helping us to communicate our growth to others and to reinforce it within ourselves.