The answer is Formal, calm, secure, reassuring
More info? What did Percy say about Mrs. Dodds?
AFTER THE CEREMONY. - this phrase is an adverb phrase.
Adverb phrase is a group of words that act as an adverb. It modifies a verb, adverb, or adjective and can tell "how", "where", "why", or "when".
In this case, the adverb phrase tell "when". When did the bride left with the groom? After the ceremony.
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.