Heaven-Opening Words

What are these words?

Zhou Wen had been considering this question the entire time. All this time, he had been observing the Time Hut, but nothing in the hut was abnormal enough to cause a reaction from the First Order of Chaos. Only the words on the hut were somewhat special.

Sweetie's Hut, Past, Present, Future, and Chaos—why do these words have a special power? What is the foundation of this power? Why is this power related to the First Order of Chaos?

In the beginning, there was only Chaos, and it drew the curtains to all things. What is the First Order?

While pondering over this problem, Zhou Wen checked some explanations regarding the words on the Internet. Typical resources stipulated that text were symbols.