Only I know what I have done in my life! In fact, it means that he has seen clearly that the world is like a dream and a bubble. Isn't it nice to just let everything take its course and live an ordinary life?
From "Three Visits to the Thatched Cottage" in "The Romance of the Three Kingdoms", the general meaning is - Whoever wakes up first in the big dream, I already know the things of this life. In the spring (I) slept enough in the thatched house. Outside the window The daylight moves slowly.
This is a poem that Zhuge Liang recited after waking up from his nap. The poem portrays Zhuge Liang as a wise and wise man who is indifferent to his ambitions, quiet and far-reaching.