Ever since I was young I have had a little hobby. Whenever I go to bed I tend to lie awake for quite a while (unfortunately). So to pass the time a little I used to focus on one point in my bedroom and then try to blurr out something else in my vision. So for example I would look at the door, focus completely on that and then try to blurr out the painting on the wall that was just within my field of view. Untill I could no longer see it and it would become a part off the wall. All while keeping my eyes focused on the door.

Now this works best with a kind of dark room. For instance a dark room with only light coming in from a window at night, or some lights from alarm clocks. Then you can focus on a lighter part and blurr out other parts.

So lately I got the hang of it. While I was young it would take me sometimes half an hour to blurr it out for only a second. Now I can blurr out entire parts of my room for longer periods of time. Last night though I went one step further. It sort of all clicked and I could blurr out pretty much everything around my focus point (the window) without much effort. Then I started to blurr out the window itself, which became more like a white spot removed of any details. When finally for only a second or two I was looking at my room with both my eyes opened fully and my vision was completely blocked. I couldn't see anything.

After that I had some trouble finding details again, so I put on the lights for a while and adjusted back to a detailed world, before I went to sleep. It was a really weird sensation to look at the world with your eyes opened without seeing anything. I know I have read some things in dream yoga (I think?) that had a similar proces of controlling vision, only with your eyes closed. I feel it is very similar to that.

Could this somehow help me getting more cotrol over my dreams? And do you think there might be a better way to go about doing these things? Also, does anyone else have experience in these things?

For those who are still curious I'll explain in a little more details how my vision changes while focussing in a spoiler. It is really hard for me to explain, so if you have any questions don't hesitate to ask!
Spoiler for Explanation: