"孤独は人が自分自身を孤立させるから生じるのではなく、根本的に他の人と違うと感じるから生じます。"

Simplified Meaning:

Feeling truly alone happens when you believe you are very different from everyone around you. It's not just about being physically alone or choosing to stay by yourself. Imagine a student who moves to a new country and feels like they don’t fit in because they don’t understand the local customs or language. Even if they are surrounded by people, they might still feel lonely because they think no one else can understand them or their experiences. People can be in a crowded room, at a busy party, or with friends, yet still feel very alone if they think no one there shares their thoughts or feelings. This kind of loneliness is deeper and more about emotional connection than just being around people. To overcome this, they might try to find common ground with others, sharing stories and interests, which can help them see that they are not so different after all. This way, they can start to feel more connected and less isolated, even in a new place or situation.