We passed the School, where Children Strove At Recess – in the Ring –
Dickinson is painting a little scene of what they are riding by. If you've ever taken a hayride in a carriage in the fall, maybe you saw something like this too.
They see children playing in the schoolyard during recess.
This scene seems almost eerily normal. At first, we're in this strange scene with death that doesn't seem at all normal, then we're looking at something totally familiar. Why do you think Dickinson does this? Maybe you think the mixing of the unreal and real makes the poem seem even stranger. Or maybe you think it makes death and dying seem like just another ordinary part of life.
We passed the Field of Gazing Grain – We passed the Setting Sun –
More scene setting. They pass "the fields of […] grain" and "the setting sun." When she describes the grain as "gazing" maybe she thinks the thicker tops of the grain resemble heads, or perhaps that the grain seems to stand still and just look at the carriage as it passes.
The sun and field are much more general descriptions of the scene than the previous lines, yet might even have symbolic significance. The setting sun, for example, signifies the end of the day, but might also stand for the end of life. Ever heard of old people being in their twilight years?
We should also notice the repeated phrase, "We passed" (in poetry-speak, a repeated word or phrase throughout a poem is called anaphora). Here it works to mimic the slow progression of the carriage. You can almost hear the echo of clomping horse hooves in the repeated phrase. So instead of feeling like this poem is at a standstill, we're aware that it's moving forward. It almost allows us to be a part of their journey, not just outside observers.