'Son of Man' in the Bible

I continued looking in the visions of the night, when lo! with the clouds of the heavens, one like a son of man, was coming, - and, unto the Ancient of days, he approached, and, before him, they brought him near;

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