651. Verse 16 You shall make a window for the ark, and you shall finish it to a cubit above; and you shall set the door of the ark in the side of it; lowest, second, and third storeys you shall make it.

'The window that was to be finished to a cubit above means the understanding part of the mind. 'The door in the side of it' means hearing. 'The lowest, second, and third storeys' means factual knowledge, rational concepts, and intellectual concepts.