How does an interesting soul answer the next sentence funny?

Good-looking skins are the same, and interesting souls are one in a million.

This sentence means that there are too many beautiful faces, but fewer people are interesting inside. The original text is from Oscar Wilde's novel dorian gray: There are many beautiful faces, but interesting souls are hard to find.

Sentence source

"Good-looking skins are the same, and interesting souls are one in a million" originated from network culture and then spread widely. There are many wonderful people in life, but it's hard to find someone who fits in with your heart from beginning to end.

When we first met, most of us only looked at each other's appearance and ignored the inside. After that, through constant getting along, what really brings us together is the inner. If a person's gold and jade are beyond his reach, it may be popular at first, but it will certainly not be widely accepted over time.