Read the passage. I wandered lonely as a cloud
That floats on high o'er vales and hills,
When all at once I saw a crowd,
A host, of golden daffodils;
Beside the lake, beneath the trees,
Fluttering and dancing in the breeze.

What is the main idea of this passage?

1. The speaker is scared of large crowds.

2. The speaker enjoys flying in airplanes to view nature.

3. The speaker avoids walking on windy days.

4. The speaker was walking alone one day and saw a field of daffodils blowing in the wind by a lake.