The answer is He thinks of the scene described in the poem.
Explanation: He thinks about the scene in the poem, and are happy with that.
When the poet reflects, then he remembers "that moment," which he lived, that is, he has observed, has passed through the experience and then has the ability to turn that experience into poetry, through a poetic moment that is remembered and revived, and all of this happens in a simple way, lying on the couch and in solitude, and looking inward is to remember the "event" and when this happens he becomes part of the whole of nature, he fills with joy and dances again. With the daffodils.