What does Zhuge Liang mean when he says "I know who dreams first"? ?

Life is just a dream that seems real. Who can see through this first? Only I know what I have done in my life! In fact, he has regarded the world as a dream. Everything is natural.

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This is Zhuge Liang's third nap. A few hours later, Zhuge Liang woke up and sang this poem.

The first and second sentences of the poem "Who first felt the big dream? I have known myself all my life. "From the big picture of life, how many people can thoroughly understand the truth of life? "I know myself" is not only a kind of "self-knowledge" of life dreams, but also a kind of awareness of everything in the world and an awakening of life philosophy.

The third and fourth sentences in the poem "The thatched cottage sleeps well in spring, and the sun is late outside the window", which describes Zhuge Liang's uncontested life state. Literally, the first two sentences and the last two sentences of this poem seem to have no inherent inevitable connection, but after careful consideration, an image of the Great Sage who is indifferent to Zhi Ming and quiet and far-reaching comes alive.

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Hope to adopt, do not give points.