'Lower' in the Bible

When he had finished speaking, he told Simon, "Push out into deep water, and lower your nets for a catch."

Simon answered, "Master, we have worked hard all night and caught nothing. But if you say so, I'll lower the nets."

Now what does this "he went up" mean except that he also had gone down into the lower parts of the earth?

You made him a little lower than the angels, yet you crowned him with glory and honor

Now when God put everything under him, he left nothing outside his control. However, at the present time we do not yet see everything put under him. But we do see someone who was made a little lower than the angels. He is Jesus, who is crowned with glory and honor because he suffered death, so that by the grace of God he might experience death for everyone.