I cover my eyes to manage my intake of vibrational energy. I believe that what you focus on the most is what you spend your energy on; what you create and draw to you.
I am selective on what I give my attention to because I believe that humans are powerful creators and that every thought is a prayer. A Universe that hears vibration surrounds me and everything in it. It hears what is dominant and reflects it back as a physical manifestation.
If I look at some unwanted thing, like violence or corruption and say in my mind " I do not like this violence and corruption!" over and over. If I push against it and I hold the vibration of resistance and intense emotion of it in my head, I lend it energy to grow bigger.
All the Universe hears is "violence, corruption..".endlessly. So it manifests more of it.
I choose to hold vibrational energy that is focused on harmony, abundance, well being and balance. This is a very difficult discipline to do. Most people only react to what has already occurred and is presently manifested. It is so in your face and often repeated for dramatic effect on TV and other media. It is easy to get upset at what you do not like to see.
It takes mastery and willingness to retrain yourself to hold positive thoughts and images when the evidence of them is still un manifested.