What deeper meaning, or symbolism does the grass have in this section in a child said what is a grass?

While various symbols are connected to grass in this poem, the overall meaning of grass in this poem is that is is used as a metaphor for life. The poem begins referring to grass as God-given, and as a child. The middle of the poem references grass growing, and being a part of all people's lives. The poem then discussed graying hair, and ultimately uses grass as a symbol for death. It follows each stage of life, and shows that grass is universal, and a part of all people's lives, just as life and death are universal.