The speaker promises to describe a dream vacation, but it isn't a trip to anywhere. Instead, each line offers a small, strange moment in nature: blowing on a dandelion, picking up a stone, standing in the rain. Several of these moments twist what we expect. Rewinding wildfires so we can hear the trees' "qualms" imagines undoing harm and listening to what the forest feels. Looking for dried-out leaves while soaking wet suggests a longing for what is gone or left behind.
The turn comes in the last two lines. "Both be a being" and see ourselves "unbecoming" hints at losing our usual selves together, perhaps dissolving into something simpler. Then the speaker states the plain point: the dream is simply time with "you," whatever the weather. The mood is gentle, dreamy and a little melancholy, but it settles into warm devotion. The speaker seems to value presence and closeness over any perfect place.