2. This sentence is quoted from Water Margin. The translation is to break through the dark clouds and see the sun, which is a metaphor for breaking through the darkness and seeing the light. It is also a metaphor to eliminate doubts, and my heart suddenly understands.
3. Appreciation: This is a famous sentence that takes scenery as a metaphor. The whole poem takes the blue sky and bright moon as a metaphor, vividly expressing a subtle and unspeakable reading feeling. The light doesn't exist, it's just blocked by dark clouds. Therefore, if you want to be a faithful wife, you must break through the darkness. This situation is quite similar when the same person obtains new knowledge and huge benefits through reading and raises awareness.