Final answer:
The stanza is a reflective musing on how gardens can be reminders of past instances of happiness and reality, symbolized by figures under trees, mingling an inquiry into a man's identity with reflections on life and death.
Step-by-step explanation:
The second stanza of 'The Man with the Garden Tool' can be summarized as a reflection on the nature of gardens as places that evoke memories of the past. The narrative voice suggests that the figures resting beneath the trees in a garden symbolize fragments of one's past happiness and reality.
This contemplative moment captures the essence of nostalgia and the human tendency to associate physical spaces with emotional memories, prompting questions about the identity of a man who is digging with a spade and the dissonance between the mundane and the profound in the act of burial.