Castles of speech

Pure is the Builder who in the unseen world
constructs castles of speech.
Know that speech is the sound of the door
coming from the palace of mystery:
try to discern whether it is the sound of opening or closing.

The sound of the door is perceptible,
but the door itself you cannot perceive:
ye see, you are aware of the sound,
but the door ye see not.
When the harp of wisdom breaks into melody,
consider which way the door of the Garden of Paradise is swaying.
Since you are far from its door, pay attention to the sound.

Rumi