Three short lines, and a small, quiet moment: the sun is going down, and as it does, it casts a shadow of the speaker. What stands out is the wording. The sun "creates" the shadow, and it does so "for me." It reads almost like a gift, as if the fading light has made something just for this one person.
That choice shapes the feeling. A shadow could easily seem gloomy, a sign of loneliness or the day ending. Here it feels calmer and more personal. The speaker seems to notice themselves in the world, tied to the sun and the landscape around them. Judging by the brevity, the speaker isn't explaining or arguing anything, just pausing to look.
The mood is still, reflective, and gently content, with a hint of wistfulness because sunset means light is leaving. Even so, the poem suggests that something is made in that leaving. The long evening shadow becomes a companion rather than a loss.