Bring me my chariots of fire

I pass this everyday on my way to work, on top of a terrace of buildings which would look at home in Bath rather than Perth. I don't know why it makes me think of Blake's Jerusalem. Probably just the sun glinting on the trident.  First day back at work after the festivities ( I use the term loosely!) and not too bad although still coughing for Britain. Quite a few people off sick. Definitely something going about!