Intellect is the system for thinking, the instrument of thinking, the mechanism for thinking. But only the ignorant needs to think. One who does not know, thinks. One who knows, why should he think? So, intellect is an instrument for the ignorant, not for the wise. The knower is one without intellect. The very meaning of the word intellect is that there is something that you don’t know and that you have to think about it. The process of thinking in you is called intellect. Through thinking, one seeks to know.
Understand it in this way: a blind man gropes with his cane because he is blind, so he keeps his cane with him and gropes with it. He can even open a door with it. Intellect is like a cane in the hand of the ignorant: he gropes for the door with it. Where the door is, he does not know, so he gropes, he bumps into things, he makes mistakes. Hence, the very methodology of the intellect is learning through trial and error. You try, you make mistakes and you learn. That is exactly what the blind man does: he gropes, he finds that this is a wall and not a door, he hurts his head against it so he gropes at another place and then yet another. He searches in dozens of places and then, somewhere in the process, he stumbles on the door, opens it and goes out.