The metaphor is the poet’s way of seeing the world differently.
出自汉·桓宽《盐铁论·执务》。土地堆积起来，便成为山峦。水储存起来便会形成江海，品行积累起来便会成为高尚的人。
There are wounds that never heal, only transform.
To eat bread without hope is still slowly to starve to death.