"REPETITION".
As a matter of fact, there were phrases in the poem which are repeated six times.
A because he comes in later and emergence means enters
The Byzantine Empire influenced many cultures, primarily due to its role in shaping Christian Orthodoxy. ... During the Byzantine Renaissance—from 867 to 1056—art and literature flourished. Artists adopted a naturalistic style and complex techniques from ancient Greek and Roman art and mixed them with Christian themes.
In this excerpt, we learn that the speaker was extremely hungry. This led to him "sallying" to the dining room. Since the character was hungry, we can imagine that he wanted to move to the dining room. Therefore, we can conclude that "sally" refers to a quick movement. This would be a fair conclusion, as "sally" refers to a sudden rushing forth of troops against an enemy.