I suggest you go outside where people can see you and do this because then you can face the haunting “self” that tells you “you look stupid” while others around you can judge you for being crazy. That would be an exercise in itself if you had the courage to do it, most people don’t. The simple exercise I am speaking about is to simply tilt your head back with your eyes open and just hold your gaze straight up and see how it feels. It feels great. Why? The reason is very esoterically spiritual. Human beings stand upright and live in a pretty much flat world. We have our gaze focused down most of the time. This is a finite limited view of a Reality which is infinite. Even when we look up it is from down to up in the same plane and it becomes just a higher shelf on a horizontal plane. Lying down and looking up is the same. We go from vertical to horizontal so in looking up we are looking up at the “horizontal”. By tilting your head back while sitting or standing we break away from the horizontal plane and it is the only way we can. Look straight up even in a room with a ceiling and you have a complete sensation of true Reality. Reality with however many dimensions it has is only complete when one either looks up or is in the world aware that there is a true limitless vertical dimension. Even our horizontal world is not infinite. For all we see it simply goes from here to there but the sensation we get when looking straight up is of Limitless space.
Another reason for this spiritual exercise is for you to witness your Higher Power within yourself. If God Exists He Exists within our own self and by looking straight up we can feel the sensation Within of Infinity or Reality itself. I urge you to try this with an open receptive mind.