There is a tumult and uproar in the river and the waves join in creating an additional din. Hundreds of swimmers on leather bags in the river find themselves in a veritable predicament. But those who have specialised in swimming (without the aid of leather bags) from the outset, (consider the river) as a mere stream just to vault over.
Note: The veteran seekers clear the worldly hurdles quite easily and undauntedly.

In water's commotion, where waves are rolling,
Where helpless and hopeless wise once are moving,
There water is one wide leap to adept divers.

A river in turmoil with crashing waves,
Where many a swimmer on inflated goatskin finds himself in trouble,
For the real swimmer it is but a stride-wide.