Answer:
The answer is as follows.
Step-by-step explanation:
Whitman wrote this poem at the beginning of the Civil War. Whitman uses the drums and bugles as symbols of the war itself. In this stanza he calls forth for mobilization.
The solemn church, meaning a place of peace and worship should be rattled, congregation ought to be moved.
A bridegroom cannot be quiet and enjoy the fruits of love, he must go to war.
A farmer, whose life is considered peaceful, should not have that peace.
Nobody is sparred from the incessant drumming. War affects everyone and Whitman stresses this in this stanza.