Once Goddess Parvati urged Lord Shiva to tell the secret of immortality. But he kept postponing the reply. But goddess was adamant to know. Finally , Lord Shiva selected the 'Amarnath cave' where the secret of immortality could not be head by anyone.Reaching cave was not easy. To maintain the secrecy He did not want any one to be part of the conversation , so He decided to leave all His belongings before entering the cave.During his journey , at the first point HE asked Nandi(His vehicle, the bull) to wait for him and he proceeded towards cave. That place is known as 'Pahalgaon' which derive its name from the word 'Bailgaon' which means 'the place where bull dwell'. At the second halt , He removed chandrama(the moon) from His head. This place got its name 'Chandanwari'. At the third halt He left His snakes and the place got its name 'Sheshnaag'. Even today the lake of Sheshnaag is unusual green in colour which is the abode of snakes and at night one could see the reflection of precious gem called 'Naagmani' on the surface of lake. At the next stop , He left his son,Ganesha, so the place got its name 'Mahagunus Parvat'. At the fifth halt,Panchtarni, He left the 'panchtatav' (the 5 elements of creation). Finally, they reached the cave. Lord Shiva started narrating the legend of immortality ,'Amar'Katha' to goddess Parvati. But before the completion of story she felt asleep. Incidently, the two birds were listening the story at that time. as a result they become immortal. Even today the two birds can be spotted around the holy cave. Here Lord Shiva is present in the form of shivling in the form of ice. This shivling form itself during the waxing moon and reduce during the waning moon
The Mystic Sheshnaag Lake
The Holy Cave where the secret of immortality was revealed by Lord Shiva
The Shivling at Amarnath Cave