ĪSAR or Īśvar, a Gorakhpanthī yogī, who according to Miharbān, Janam Sākhī, met Gurū Nānak at Sumer mountain in company with a group of Nāth ascetics and engaged in a discourse with him. Bhāī Gurdās, Vārāṅ, I. 39, mentions Achal Vaṭālā, outside of Baṭālā, in present-day Gurdāspur district of the Punjab, as the venue. The name Īsar occurs in one of Gurū Nānak's ślokas in Rāmkalī kī Vār in the Gurū Granth Sāhib. The subject of the dialogue was the nature of the Supreme Reality and what constituted the true spiritual path .