Three short lines carry a lot of wanting. The speaker says "All I want," which sounds simple, but the title, "Egypt," suggests they are somewhere far from the place they miss. The poem doesn't tell us why they are there or whether they can go back. We only feel the ache of being away.
What they long for is small and sensory: hills, the scent of almond blossoms, rain. None of it is grand. These are the ordinary things that make a place feel like home, and they stand out all the more against a setting we imagine as dry and unfamiliar. Rain, saved for the last line and standing alone, feels especially heavy, like a wish that trails off into silence.
The mood is quiet, tender, and a little sad. The poem is so spare that the emptiness around the words starts to feel like the distance the speaker is trying to cross.