The poem revolves around a traveller who is on a journey alone, with only his horse for company. He finds a lonely house inside a forest, and knocks the door under the moonlight. The window sill is covered with ferns and the traveller does not get any response. A bird flies out of the tower as the horse grazes around. The traveller stands there perplexed and knocks a second time. No one responds and looks into his grey eyes. The traveller compares the silence to a group of phantoms or ghosts as listeners. They stood listening to the traveller's call in the moonlight. down the stairs. They listened in the air stirred by the traveller's voice.