Shri Nathji used to tell the story of Sultan Jamshed and his cup which he made, called Jam-e Jahan nama. It can also be heard in the recording of Shri Nathji's lecture in Akola on 22.07.78. In that cup Jamshed can see anything he wanted to see in this world. So whenever he looked inside the cup all that is this world was visible to him. In his cup, Jamshed saw that there is a relation between everything in this world and in every relation he saw separation and there was no happiness in separation. So he deduced that there is no real happiness in this world. And then he also saw that there is no happiness in the other world as there is attachment there as well and attachment is the cause of grief. So he said to God. I have seen it all. I do not want this world, or the other world, I only want you.
Jamshed was the king of Persia The Cup of Jamshed (Cup of Djemscheed or Jaam-e Jam,) is a cup of divination which, in Persian mythology, was long possessed by the rulers of ancient Greater Iran. The cup has also been called Jam-e Jahan nama, Jam-e Jahan Ara, Jam-e Giti nama, and Jam-e Kei-khosrow. The Cup of Jamshid has been the subject of many Persian poems and stories. Many authors ascribed the success of the Persian Empire to the possession of this artifact. It appears extensively in Persian literature.
The cup ("Jām") was said to be filled with an elixir of immortality and was used in scrying. As mentioned by Ali-Akbar Dehkhoda, it was believed that one could observe all the seven heavens of the universe by looking into. It was believed to have been discovered in Persepolis (Persepolis was the ceremonial capital of the Achaemenid Empire -ca. 550–330 BCE. Persepolis is situated 70 km northeast of the modern city of Shiraz in the Fars Province of modern Iran.) in ancient times. The whole world was said to be reflected in it, and divinations within the Cup were said to reveal deep truths.