Roger McDonald seems never to do things twice in the same way. To be solemn about it, he has a mind which is both capacious and vivacious: events, experiences, things at large flood in to stock its territory, and become the livelier from their environment. Refreshed himself by Australia, he refreshes some of it in return.

The Tree in Changing Light is a case in point. This is a meditative work whose attention moves easily from the world’s physicalities and fluctuations to the appraising mind itself and back again. It is fluently, but not trivially, dialectical – an example of well-schooled attention which is itself a kind of schooling. Here, for instance, is an early passage: