Should the mistress's chest slightly quiver, then the dapper Rao's hands would feel shame.

This couplet beautifully illustrates the profound impact a powerful woman's vulnerability can have. It suggests that if even a slight tremor of fear or anxiety appears in the chest of a respected mistress, then the hands of a stylish, seemingly strong man would feel ashamed. This implies that her emotional distress, even if subtle, deeply challenges his pride and sense of capability. He might feel inadequate or responsible, unable to protect her or alleviate her fear, making his boasted strength seem hollow. It highlights a deep emotional connection where her internal state directly reflects on his perceived power and composure.