Every year, millions of people go to Makkah to perform Hajj. Seen from the outside, it's hard to understand why. Heat, crowds, exhaustion, entire days spent walking. What really matters only becomes clear afterward, once a person is back home.

The first thing Hajj takes away is the clothing you normally use to tell others who you are. Men wear two simple, unstitched pieces of white cloth. Women wear simple clothes and a headscarf. Nobody knows, just by looking, whether the person next to them is a millionaire or has nothing. Before teaching anything at all, Hajj has already erased the first way we usually judge someone.

Then it takes the rest. The name you built, the title, the carefully kept image. Around the Kaaba walk, side by side, the same people who anywhere else in the world would be split by different lines, different neighborhoods, different bank accounts.

There's a moment, on the Day of Arafah, when this becomes even clearer. Millions of people, in the same place, asking for forgiveness at the same time, as if it were a rehearsal for the Day of Judgment. No one there is more important than the person next to them.

Part of the ritual is walking between the hills of Safa and Marwa, retracing Hajar's desperate search for water for her son, in the middle of the desert. It's not a vague metaphor. It's a concrete reminder that faith, often, is born exactly in the moment we no longer have anything left to control.

And maybe that's why so many people come back from Hajj different. For a few days, the money disappears, the fame disappears, the character each of us builds for the world to see disappears. And only one thing is left, or rather, two: the person, and Allah.

It's uncomfortable to realize how much of what we call identity is, in fact, clothing we put on. And that's why Hajj teaches through what it takes away before it teaches through what it adds.