the plant wilted
in the morning sun
searching for a cool breeze
This poem metaphorically describes a situation. In the poem a person is outside working. The person is represented by the plant. The day is hot though and the person is affect by the heat even in the morning. This is represented by the plant wilting. The level of heat is referenced by the idea that the morning (rather than hotter afternoon) sun caused the effect. The person then wants there to be a cool breeze for relief. This is referenced by the idea of searching in the poem. This idea also references the idea that person decides to go inside where there is air conditioning to get away from the heat.
This poem also has the idea that its meaning for a reader could change depending on how it is read (apart from the explanation above). A reader could read the poem and think that the plant wilted and so went searching for a cool breeze, or they could read the poem and think the plant wilted while searching for a cool breeze. These two situations are different and could impart different ideas.