That (true Brahman) shines forth grand, divine, inconceivable, smaller than small; it is far beyond what is far and yet near here, it is hidden in the cave (of the heart) among those who see it even here.

In plain words: Brahman, the ultimate reality, shines great and divine, beyond what the mind can picture. It is smaller than the smallest thing. It is farther than the farthest place, yet it is right here. Those who truly see find it hidden in their own heart.