勉強
17 And he came and stood near where I stood: and when he was come, I fell on my face trembling, and he said to me: Understand, O son of man, for in the time of the end the vision shall be fulfilled.
'Height' signifies what is inward, and also heaven.
(参照: Arcana Coelestia 1735, 2148, 8153; Divine Love and Wisdom 103)