a walk in the rain

I went for a walk in the rain.Through the Karori tunnel, leaks lining its  concrete cylinder wall. Past a concrete wall , covered in moss, lichen, graffiti and paint. A  mural of greens and greys. It was on that walk where my interest in concrete began. Everywhere I looked I began to see concrete.I began to dream in concrete.Of car park concrete jungles and tiny paving stones.