1.) The idea of using the same image is pretty much the same for everyone, and you're free to choose which ones you like best.
2.) The images in the poster are the same, so if you choose a particular image you're free from having to use the same image again, or if your favorite is a lot of different colors.
3.) If it looks good in your mind, it will work in your brain. It doesn't have any effect on how you'll act.
4.) If the poster is good for your mind, then it'll make your mind better, too, so you can focus more. If the poster looks too bad, your mind might go "Oh, that's too much of the poster" (and you may have to use another image).
I've found this idea to work best for people with very limited brain power. I think this works better for people that have lots of brain power (i.e., a large brain). I also think that the poster can be useful if the poster doesn't seem to be distracting or distracting to your eyes, so if your eye doesn't get tired after the image you choose it. If you want to try it out for yourself, I've seen it work with my wife who is very active.
I think this idea is very good for those who don't mind having their mind busy with other things. It can make your life more pleasant and more fun.
If you're looking for more advice on the poster or for a better approach, check out this video: