Michael Jorgensen's poem looks back on a short stretch of time, just two days, that felt complete and precious, and that has already ended. The speaker never says exactly what happened or who was involved, but the closing lines ("We no longer have each other") suggest a connection with another person that has now been lost.
The images track the way the feeling changes. The first stanza compares the days to a family, with a father who disappears quickly and a child who blinks and misses it. Next, the days become a memory, as faint as a reflection in a stream or a half-forgotten dream. Then comes the green light the speaker only noticed once it was gone. The mood is wistful and quietly regretful, with a sense of having not appreciated something until too late. The repeated "These two days" at the end sounds like the speaker circling back, unable to let go.