Maharṣi (Maharsi) or Sage Yajñavalkya (Yajgyavalkya) took the figure of the horse and performed the tapasyā (tapasya, a kind of meditation) to attain the Yajurveda. For this reason,his disciples were also known as Vāji (Vaji) or Aśwa (Aswa). Uddala was one of these disciples of Maharṣi (Maharsi) or Sage Yajñavalkya (Yajgyavalkya) .