Not a bad thing, Nzall.
I believe you have enteted a mental state people called "flow". At this state you are most peaceful and creative, yet your attention is never drift off from the road. This is a healthy and most sought after state of mind.
I experience this every time I am riding on my own on a familiar route. Any issues I have in mind will come to light without consciously thinking about them. If there are no issues some ideas about life will emerge. I think people experience "flow" in other activitied too, EG, when cooking and joggng alone, and when they are skillful in it. But flow is more easily felt in cycling. Three conditions to enter flow;
- you enjoy doing the skill
- you are familiar with the skill
- you are on your own
Next time do nothing special.; just keep riding. Your internal state will cleverly decide when you will enter the flow state again. Interedtingly, if you watch out when you will enter flow, it won't.