The word sa-samudra means "near the sea." The reservoir of water was like a bay, for it was not very far from the sea. The word upa, meaning "more or less," is used in many ways, as in the word upapati, which indicates a husband "more or less," that is to say, a lover who is acting like a husband. Upa also means "greater," "smaller" or "nearer." Considering all these points, the reservoir of water which was seen by the Pracetās while they were traveling was actually a large bay or lake. And unlike the sea or ocean, which has turbulent waves, this reservoir was very calm and quiet. Indeed, the water was so clear that it seemed like the mind of some great soul. There may be many great souls—jñānīs, yogīs and bhaktas, or pure devotees, are also called great souls—but they are very rarely found. One can find many great souls amongst yogīs and jñānīs, but a truly great soul, a pure devotee of the Lord, who is fully surrendered to the Lord, is very rarely found (sa mahātmā sudurlabhaḥ, Bg. 7.19).