what is the main message of the book of daniel?

Shadrach, Meshach, and Abednego are saved from the fiery furnace by 'one like a Son of God' in Chapter 3. Daniel and the three young men stay faithful to God throughout the book through Prayer (2:19-23, 3:24-25, 6:11-12, 9:3-4, 9:16-20). Their names, all of which reflect the name of God, are changed to names referring to Babylonian idols. Chapters 1-6 refer to the trials of Daniel and his three young companions, Hananiah, Mishael, and Azariah, during the time of the great Kings of the East. Themes in the Book of Daniel include heroism, remaining true to God in the midst of an adverse and idolatrous culture, and God's protection of his faithful ones through his Angels. Jesus Christ referred to Daniel the Prophet (Matthew 24:15). The prophet Ezekiel, who wrote his prophecy in Babylon about the same time, mentioned three Biblical figures in a row as men of righteousness, Noah, Daniel, and Job (Ezekiel 14:14 and 14:20). The Book takes its name from the hero, Daniel - דָּנִיֵּאל - a young Jewish prophet who lived in Babylon, one of the first exiles from Jerusalem during the Babylonian Captivity (Daniel 1:1-7). In addition, the captivating prophecy, imagery, and symbolism make the Book of Daniel one of the most read of Hebrew Scripture, our Old Testament of the Bible. Daniel in the Lions' Den is a favorite Bible story for children. The Book of Daniel is followed by the Prophet Hosea, the first of the Prophets in the Book of the Twelve.

The prophet Daniel is one of four Major Prophets in Hebrew Scripture, along with Isaiah, Jeremiah, and Ezekiel.

What is the main message of the book of daniel?