Mind always functions within the categories of time, space and causation. These three categories are mental creations only. A coconut tree is not really twenty feet high. The height is only a mental interpretation. There are vibrations only outside. It is the mind that creates length, breadth, height, thickness, dimensions, void, square, etc. A distance of two miles comes out of feeling only. You actually feel that you have walked so much distance. When you transcend the mind, all these categories vanish entirely. Annihilate the mind, therefore, through Self inquiry. You will enter a realm of Peace and Joy which is eternal, infinite and causeless.