The poet describes the effect of heat on nature, including people. Lampman preferred nature poems. He commented that of his poems, “those that are devoted to nature description are certainly the best” (uwco.ca). The sun beats down, but it is a peaceful process rather than a destructive one.
Beyond me in the fields the sun
Soaks in the grass and hath his will;
I count the marguerites one by one;
Even the buttercups are still.
The sun “hath his will.” Nature cannot be controlled by man. The cycle of nature is like the cycle of life. We cannot control our fate to live or die, just as we cannot control whether or not the sun sets. Lampman accepts and celebrates this.