'Understand' in the Bible

And it came to pass, when I, even I Daniel, had seen the vision, that I sought to understand it; and, behold, there stood before me as the appearance of a man.

And I heard a man's voice between the banks of the Ulai, which called, and said, Gabriel, make this man to understand the vision.

So he came near where I stood; and when he came, I was affrighted, and fell upon my face: but he said unto me, Understand, O son of man; for the vision belongeth to the time of the end.

At the beginning of thy supplications the commandment went forth, and I am come to tell thee; for thou art greatly beloved: therefore consider the matter, and understand the vision.

And he said unto me, O Daniel, thou man greatly beloved, understand the words that I speak unto thee, and stand upright; for unto thee am I now sent. And when he had spoken this word unto me, I stood trembling.

Then said he unto me, Fear not, Daniel; for from the first day that thou didst set thy heart to understand, and to humble thyself before thy God, thy words were heard: and I am come for thy words'sake.

Now I am come to make thee understand what shall befall thy people in the latter days; for the vision is yet for many days:

Many shall purify themselves, and make themselves white, and be refined; but the wicked shall do wickedly; and none of the wicked shall understand; but they that are wise shall understand.