When Bob Dylan and Allen Ginsberg visited Kerouac's hometown of Lowell, Massachusetts as part of the Rolling Thunder Revue tour, they visited Kerouac's grave where Ginsberg recited stanzas from Mexico City Blues.
The passage describes a specific event where Bob Dylan and Allen Ginsberg visited Kerouac's grave in Lowell, Massachusetts, during their tour. Ginsberg recited verses from his poem "Mexico City Blues."