As a rule, the motive for the reappearance on earth of a spirit lately tenanting a mortal body, is found in some neglected duty. The spirit of a suicide is morally certain to walk: a reason why suicides are so unpopular as tenants of graveyards. It is a brave man who will go to the grave of a suicide and play 'Hob y deri dando' on the ysturmant (jew's-harp), without missing a note. Many are the tales displaying the motive, on the ghost's part, of a duty to perform--sometimes clearly defining it, sometimes vaguely suggesting it, as in the story of Noe. 'The evening was far gone when a traveller of the name of Noe arrived at an inn in Pembrokeshire, and called for refreshment. After remaining some time he remarked that he must proceed on his journey. "Surely," said the astonished landlord, "you will not travel at night, for it is said that a ghost haunts that road, crying out, The days are long and the nights are cold to wait for Noe." "O, I am the man sought for," said he, and immediately departed; but strange to say, neither Noe nor the ghost was ever heard of afterwards.'[66] The ghost of a weaver, which appeared to Walter John Harry, had a very clear idea of the duty he must perform: Walter John Harry was a Quaker, a harmless, honest man, and by trade a farrier, who lived in the romantic valley of Ebwy Fawr. The house he lived in was haunted by the ghost of Morgan Lewis, a weaver, who had died in that house. One night, while lying awake in his bed, with his wife sleeping by his side, Harry saw a light slowly ascending the stairs, and being somewhat afraid, though he was naturally a fearless man, strove to awake his wife by pinching her, but could not awake her. So there he lay in great fear, and with starting eyes beheld the ghost of the weaver come up the stairs, bearing a candle in its hand, and wearing a white woollen cap on its head, with other garments usual to the weaver when alive. The ghost came near the farrier's bed, who then mustered up courage to speak to it. 'Morgan Lewis,' said Harry, 'why dost thou walk this earth?' The ghost replied with great solemnity, that its reason for so doing was that there were some 'bottoms of wool' hidden in the wall of this house, and until these said bottoms were removed from the wall it could not sleep. The ghost did not say this wool had been stolen, but such was the inference. However, the harmless farrier spoke severely to the ghost, saying, 'I charge thee, Morgan Lewis, in the name of God, that thou trouble my house no more.' Whereupon the ghost vanished, and the house ceased thereafter to be haunted.