Vivekananda visited Pavhari Baba, the famous yogi of Gazipur, and learned from him the secret of work: “Pay as much attention to the means of work as to its end.” The yogi told him, “Live in the house of your guru like a cow,” which means that one should cultivate the spirit of service and humility. There are many wonderful stories about Pavhari Baba. Once a cobra entered his cave; later, the yogi said to his frightened disciple, “It was a messenger who came from my beloved.” Another day, a dog ran off with the yogi’s bread and he followed, praying humbly, “Please wait, my Lord; let me butter the bread for you.”
While at Gazipur Vivekananda suffered from stomach trouble and lumbago. He decided to take hatha yoga initiation from Pavhari Baba in order to cure his ailment. However, that night Ramakrishna appeared before him, looking at him intently as if very grieved. This vision was repeated for twenty-one nights. He gave up the idea of initiation, reproaching himself for lacking complete faith in the Master. (Source: God Lived with Them)