With respect this is a pointless argument If you will please look at the main page you will see that the current Dalai Lama claims the Mongolian term Dalai was a transaltaion of the Tibetan Gyatso which means ocean Moreover would not educated Mongolian monks have read the same texts as Tibetan monks referring to oceans So why should Tibetans but not Mongolians have a concept of what oceans are like Finally it is silly to argue about understanding what an ocean or a universe is and how they may be understood With our limited facilities it is probable that none us know the true nature of any thing This does not mean that we can not have a concept of the universe we don t commonly confuse the universe as a planet a solar system or even a galaxy Likewise a person living on a flat coral island might well gain a concept of a mountain without ever seeing one just putting together what they have learned about the qualities of mountains So why do you insist that Mongolians could have had not concept of oceans especially when they would have run across references to them in Indian Chinese and Tibetan literature Sincerely