Brother, the greatly praised chief merchant of the city, whose influence is powerful even in the water's current, had a grand pavilion erected.

This couplet beautifully describes the majestic nature of a river's flow. It's compared to a respected city merchant, highlighting its power and influence. Imagine a river, strong and commanding, dominating the waters it holds. Its grandeur and importance are widely acknowledged and admired. The phrase a large canopy has been erected metaphorically suggests the vast reach and impact of the river, creating a grand environment or a significant event, much like a grand celebration where a large pavilion is set up for all to witness and enjoy. It truly captures the impressive presence of water in motion.