"世界の他の部分は白黒だったが、私たちは鮮やかな色の中にいた。"

Simplified Meaning:

This quote means that while everything else felt dull and boring, one particular experience or relationship was full of life and excitement. Imagine watching an old black-and-white movie where everything looks the same and nothing stands out. Now, think about how much more interesting and lively it feels when you watch a movie in bright, bold colors. For example, consider a person who feels their daily routine is repetitive and unexciting. Then, they meet a new friend who brings joy, new activities, and a fresh perspective into their life. This makes their world feel vibrant and full of possibilities compared to the monotony they were used to. The message here is that certain relationships or moments can make life feel exceptionally rich and meaningful, even if everything else around it seems ordinary. To apply this to your life, seek out and cherish experiences and people who bring that sense of vivid happiness and excitement into your day-to-day existence.