Theme

Each day, I wonder what the theme will be.
There are certain things that grab my attention when I'm starting my day, like annoying phone calls or the same unusual sightings during the day. One day I kept seeing a black van with orange rims which I never seen before, and never seen since. For that one day, I saw three such vans.
Incidents like the above, I call themes.
Three seems to be a theme number, but there are at times, higher theme incidents.
Sometimes it's like buying a new car and all of a sudden, you see that car everywhere, and you wonder why you haven't noticed this before!?
I don't know what the theme is telling me, if anything!
I consider it very strange!