This quote suggests a direct correlation between our physical interactions or presence with others and our inner spiritual or personal growth. Essentially, it implies that our development in the inner worlds, which could refer to our emotional, psychological, or spiritual selves, is dependent on our physical togetherness or interactions with others.

The idea here is that human beings are social creatures, and our interactions with others often serve as catalysts for personal growth and development. We learn from each other, we grow through our relationships, and we evolve as individuals through our experiences with others. This doesn’t necessarily mean that one needs to be constantly surrounded by people. Instead, it suggests the importance of meaningful, quality interactions and relationships.

In the context of today’s world, this quote could be interpreted as a call for more genuine human connection in an age where digital interactions often replace face-to-face contact. It suggests that while technology can offer new ways of connecting, it can’t fully replace the value of physical togetherness.

In terms of personal development, this idea could be applied by seeking out meaningful connections and interactions with others. This could mean investing more time in relationships, seeking out new social experiences, or simply being more present and engaged in everyday interactions. It’s about recognizing the value of others in our personal growth journey.