One good thing about winter is that the days are so short it’s quite usual to see both sunrise and sunset, and sometimes the skies are breathtakingly beautiful. A couple of days ago I watched the sun rise over the moor and then from the other side of the house watched it set again in the afternoon behind the bare branches of trees. As the sun went down the sky turned from very pale gold to colours so subtle they haven’t got names, though there was a certain amount of amber, and many different greys; there was a cloud of Paynes Grey that gently elongated itself and drifted sideways. All together I watched for about three minutes and in that time I could see that the changes in colour and light were happening so fast that every second was measurably different. It made me think that this is how things are, in nature and for us too, we just don’t think of it that way – we’re always thinking that the moment we’re looking at something, that’s the way that it is, and it isn’t – it changes continually, and so do we.