explore

Where I beheld the operation of a great fire blazing and glittering, in the midst of which there was a division. Columns of fire struggled together to the end of the abyss, and deep was their descent. But neither its measurement nor magnitude was I able to discover; neither could I perceive its origin. Then I exclaimed, How terrible is this place, and how difficult to explore!

explore the approaches of the land 'And he put them in ward. And after that he set them free