AD BHAVANI - 'You are called Ad Bhavani, Where do you hide yourself when you have to grant salvation?' (Gond Namdev, p. 874) The word Ad means 'from the beginning' and Bhavani is another name of Durga, the wife of Shiva. Thus Ad Bhavani may connote the Shakti of Shiva. The word Ad also gives the sense of 'the first' or 'the original'. Ad Bhavani may be differentiated from Ad Shakti or Primal Power.
1. Kohli, Surindar Singh, Dictionary of Mythological References in Guru Granth Sahib, 1993