This is Ansuman Biswas, and he's a hermit.
He wasn't always a hermit. But Shugborough Hall, a stately home in England, wanted to revive the 18th century tradition of having its own hermit. So they asked for applications, and Mr. Biswas won.
The gent is a performance artist, normally living in London and not a hermit, but he wants to remind people of the need for "quiet contemplation" in the modern world.
Speaking as a hermit myself, quiet contemplation is important, but when you take too much time in it you go insane.