This picture evokes vivid memories.
April 2013, I'm underground in Tokyo, in Ikebukuro Station, the second busiest train station in the world with over 2.7 million passengers a day.
I'm walking past the underground entrance to the Seibu Department Store; this flagship store and the Seibu-Chichibu railway have the same owners. I imagine myself invisible in the crowd; nobody looks at me directly, we all float through this busy underground world, maintaining our personal spaces. Everybody is on a mission; I'm on a fake mission.
This is not what I had planned. I was invisible, merely an observer: I hadn't intended to change what I was observing. I bow quickly towards them, they bow back, and I become part of the crowd again.
The best travel is little things.