Try looking at the sky. Do not think abt it, just look.
As you stared no thinking at something so infinite, suddenly there's no object, just a vaccum, suddenly you'll become aware of yourself!
The sky is infinite, there's no boundary, it's just space & more space. The sky itself is pure emptiness- Do not think abt the beautiful sky etc... once the words gets in, they become the barrier! In emptiness there is no object to be grasped by the senses, therefore senses becomes futile. If you look at the sky without thinking, suddenly you will feel everything has disappear, there is nothing
In emptiness how can the mind function? It stops!. In the disappearance of mind- the mind that is tense, worried, filled with thoughts- suddenly you'll experience serenity.