In plain words
Understand this, you of the lovely face: if knowledge does not come near them inwardly through this teaching of the Kalottara, then even if they study millions of books, countless as the sky, understanding will not dawn in them.
Word for word
Beautiful-faced one, understand that for those in whom knowledge does not inwardly arise through this Kalajnana teaching, realization will not dawn even through study of millions of books beyond count, like the sky.