Bhai Jamu Dhatta was a dedicated Sikh of the time of Guru Arjan Sahib. Once he, along with Bhai Jodha visited Guru Sahib and told that their minds were not fully in their control; how could they concentrate on the Name of the Almighty. They asked Guru Sahib what they should do. Guru Sahib told them that one who conquers one’s mind conquers the whole of the world. Guru Sahib told them to continue the practice of concentration on the Name of the Almighty as that would help restrain their mind from distraction; hence they would be able to concentrate fully. This practice would lead to liberation. Bhai Jamu made active participation during the establishment of the city of Amritsar.
(Dr. Harjinder Singh Dilgeer)