That hum sets a pace for each of us. Therefore, to truly clear one's mind...cleaning out the hum is essential.
How is that possible? It's actually easier than you think. In fact, many of you do it without even knowing how or why. Have you ever "zoned out?" It's that state when everything seems to have disappeared from your surroundings and enables you to exist on a level that puts you in a place of relaxation.
Many of us fall into it without any provocation. It just happens. Yet, it's possible to do it on your on. You can facilitate it by staring at an object. closing your eyes and visualizing something such as a beam of light, yourself sitting, the top of your head, or any other myriad of things. The trick is to not focus on items that are emblematic of chaos. Some call the exercise meditation, some call it a form of yoga, and some call it both - by intertwining them. I call it concentrating on peace and serenity.
It may sound difficult. Since we're so used to "noise." And...it also means being fine with being with yourself. Even if you're not...try it and soon you'll find that you're perfectly okay with being alone. Calmness will begin to encompass you as time seems to stop and peace and serenity engulf your being. Once you have accomplished the ability to remain calm on your own, then you will be open to even "higher planes" of existence.
It all starts with recognizing the "noise" and your desire to remove yourself from it. Once you've done that, you're on the path to peace and serenity.