Day 65

"Initially, your experience of this interval space (between past and future) is only fleeting. However, as you continue to practice, you become able to prolong it. In doing so, you clear away the thoughts that obstruct the expression of the real nature of the mind. Gradually, pure knowing can shine through. With practice, that interval can get larger and larger, until it becomes possible for you to know what consciousness is. It is important to understand that this interval - consciousness emptied of all thought processes - is not some kind of blank mind. It is not what one experiences when in deep, dreamless sleep or when one has fainted... you take that space between past and future as the object of meditation and simply maintain your awareness of it, free of any conceptual thought processes."

His Holiness the 14th Dalai Lama (2001). An Open Heart. pp. 135-136.