The couplet suggests that when time was plentiful, disbelief was prevalent even within the mosques; now that the pillar of faith has become bent like an arch, it is of no use.

This profound couplet by Mir Taqi Mir speaks to the concept of decline, not just of faith, but of structure itself. He suggests that even in times when the very act of worship (prostration) was questioned or flawed, there was still a semblance of order. But now, when the foundational pillar—the very support (the Mehraab)—has become bent, the whole endeavor is meaningless. It's a powerful lament about a complete collapse of belief and stability.