"When Daniel, in response to the royal summons, stood in the king's presence, Nebuchadnezzar said, “O Belteshazzar, master of the magicians, because I know that the spirit of the holy gods is in thee, and no secret troubleth thee, tell me the visions of my dream that I have seen, and the interpretation thereof.” After relating the dream, Nebuchadnezzar said: “O Belteshazzar, declare the interpretation thereof, forasmuch as all the wise men of my kingdom are not able to make known unto me the interpretation: but thou art able; for the spirit of the holy gods is in thee.” PK 517.1"
"The king answered unto Daniel, and said, Of a truth it is, that your God is a God of gods, and a Lord of kings, and a revealer of secrets, seeing thou couldest reveal this secret."
Both passages highlight the idea that Daniel possesses a divine spirit that enables him to understand secrets and mysteries, although the specific wording differs.
"Then Daniel made known the mandate of the Almighty. “The tree that thou sawest,” he said, “which grew, and was strong, whose height reached unto the heaven, and the sight thereof to all the earth; whose leaves were fair, and the fruit thereof much, and in it was meat for all; under which the beast of the field dwelt, and upon whose branches the fowls of the heaven had their habitation: it is thou, O king, that art grown and become strong: for thy greatness is grown, and reacheth unto heaven, and thy dominion to the end of the earth. PK 517.4"
"The tree that thou sawest, which grew, and was strong, whose height reached unto the heaven, and the sight thereof to all the earth; Whose leaves were fair, and the fruit thereof much, and in it was meat for all; under which the beasts of the field dwelt, and upon whose branches the fowls of the heaven had their habitation: It is thou, O king, that art grown and become strong: for thy greatness is grown, and reacheth unto heaven, and thy dominion to the end of the earth."
EGW directly quotes Daniel 4:20-22, which is Daniel's interpretation of the dream. This is a clear and undeniable explicit allusion.