Guiding Light

I had a routine hospital appointment this afternoon, which was fine - it took me an hour and a quarter to travel home, which wasn't fine. It's probably six miles from the hospital to home so shouldn't take very long at all, but the traffic in and around Ipswich these days is horrendous, I wasn't very amused!
The upside of it was that this was the light in front of me guiding me home so I just had to blip it.