O ascetic, this is not true knowledge (of the Beloved); for a hundred years of devotion at that threshold is naught.

This profound couplet speaks to the deceptive nature of superficial piety. Mir Taqi Mir suggests that the 'knowledge' of an ascetic (zahid) is fundamentally flawed or untrue. He compares this false understanding to something vastly inferior to the pure, sincere devotion—the 'ta'at' (obedience/devotion)—that one would offer through a hundred years of constant prostration at a sacred threshold. It's a critique of outward show versus genuine spiritual depth.