Literature Reference: 诗人多峭冷，如水在胸臆。—— 《答韩湘》 Poets are often aloof and cold, like water in the chest. Source from 'Answering Han Xiang'.
胸: The part of the human body and terrestrial vertebrates' torso located between the neck (or head) and the abdomen. It metaphorically refers to the heart or innermost feelings.
臆: Subjective and unfounded.
Meaning: The chest symbolizes the depth of one's heart, representing the poet's profound and reserved emotions.