Poem by Chan master Empty Cloud.
Hearing whispers from the window.
忽闻窗上喁喁作响
不见无情说法，怎知瓦砾增光。
喁喁暗露消息，想是助我兴扬。
Unable to see transcendent beings expound Dharma.
How would you know the mundane radiates light?
Quiet whispers revealing the message.
Help me ascend and flourish.
