Loneliness has two kinds. One is passive loneliness: because of a lack of companionship, understanding, and connection, you feel pain. In essence, this kind of loneliness is a longing for relationships with the outside world. The other is active loneliness: choosing solitude on purpose, and still able to maintain inner stability even without external approval and companionship. People like this don’t rely on others’ understanding to prove their worth; instead, they build their own inner world, thinking framework, and life direction through being alone. Those who are truly good at loneliness aren’t people who don’t need others—they’re people who no longer rely on others to maintain their sense of presence. They have the ability to connect with the world, and they also have the freedom to coexist with themselves.