An enclosed room, especially one where a body meets. A chamber is a space that holds a gathering.

The sequence where each number is the sum of the two before it. It appears throughout growing things, which is why it feels like a natural law.

By applying the same step to each part in turn, all the way down. Recursion reaches unbounded depth with one small rule.

The holding layer around a life — a creature's home, a command line's room, an empty row awaiting its filling.