Chemicals.

So many ways that they can interact.

So many forms of life that they can create.

The chemicals in our head are volatile and the infrastructure that contains them needs, unless we are very lucky, various degrees of maintenance. When things are going well it is easy to become blasé.

To drift.

And before you know it some dangerous combinations start hanging out together, like long lost chemical brothers, leading sometimes to heightened creativity, but on other occasions to some very undesired reactions in Ye Olde Thinking Patterns.

Careful With Those Chemicals. They are a precious resource, but you don’t want to make enemies with them.