Zhang Tie had not deliberately eavesdropped on anything, nor had he intentionally extended his spiritual energy in that direction. Yet under the "spillover effect" of his powerful spiritual energy, everything within several hundred meters—every movement, every sound, every ripple in the air—was naturally perceived by his spiritual energy.
Under such circumstances, the amount of information Zhang Tie received was immense, even terrifyingly so. If he tried to distinguish it all in detail, the information flooding into his mind every second would be enough to make an ordinary person instantly dizzy and overwhelmed, even collapse or go mad.
Anyone need only imagine being able to hear, every second, hundreds of people, hundreds of insects, birds, cockroaches, rats, fleas, and the like chattering and crying beside your ears; the intestines writhing in their bellies, blood surging through veins, hearts beating, earthworms squirming in the soil, insects beneath tree bark chewing through wood fibers and sap, rats mating in heat, each feather on birds stirring the air like a violin string, fleas weaving through the forest of an animal's fur, little fish blowing bubbles beneath the water... Every second, tens of thousands of different sound signals poured ceaselessly into your brain. Then you would understand what kinds of sounds Zhang Tie's spiritual energy could naturally perceive.
Zhang Tie had once been troubled by this as well, but he quickly found a solution: filtering. This was one of humanity's instincts. Even when an ordinary person stood amid a crowd, once their attention focused on someone, the sounds around them would naturally be ignored and filtered away, leaving only what mattered most to them. After his spiritual energy underwent another mutation and solidification, Zhang Tie could use it to do many things, and its filtering ability had become even more powerful.
Zhang Tie directly used