Final answer:
Each stanza in the poem 'Memories' by Marya Zaturensky summarizes a different memory experienced by the speaker.
Step-by-step explanation:
Stanza a: The crowded workers flow into the street and the speaker's soul is overwhelmed and retreats like a frightened bird.
Stanza b: The speaker remembers a time of peace and joy in Kiev when he heard a church bell ringing a strange farewell.
Stanza c: The speaker witnessed a light growing over a field where reapers were sowing, and heard the last echoes of the River Song.
Stanza d: In an alien crowd, the speaker walks apart and holds onto memories of beauty.