This quote suggests that the root of all human unhappiness lies in our inability to be content with solitude and stillness. It implies that we often seek external sources for happiness, such as material possessions, social status, or validation from others, instead of finding peace within ourselves. The "room" in this context can be interpreted metaphorically as our inner self or mind.
The idea is that we don’t know how to stay quietly in our "room" because we’re constantly distracted by external stimuli, and we’re always seeking something more or different. This constant seeking and dissatisfaction with the present moment can lead to unhappiness.
Applying this concept in today’s world, we can see how our modern lifestyle often exacerbates this problem. We are constantly bombarded by information and stimuli from our digital devices, social media, and the fast pace of life. This can make it even more challenging to find peace and contentment within ourselves.
In terms of personal development, this quote suggests that we should learn to cultivate inner peace and contentment. This might involve practices such as mindfulness, meditation, or simply spending time alone without distractions. By learning to enjoy our own company and finding happiness within ourselves, we can reduce our reliance on external factors for our happiness. This can lead to a more stable and enduring sense of well-being, as we’re not constantly chasing after fleeting external sources of happiness.