The mind is a great servant, a great computer. Use it, but remember that it should not overpower you. Remember that you should remain capable of being aware, that it should not possess you in toto, that it should not become all and all, that a door should be left open from where you can come out of the robot.
That opening of the door is called meditation. But remember, the robot is so skillful, it can even take meditation into its control. Once you have learned it, the mind says, "Now you need not be worried about it, I am capable of doing it. I will do it, you leave it to me."
And the mind is skillful; it is a very beautiful machine, it functions well. In fact all our science, together with all our so-called progress in knowledge, has not yet been able to create something so sophisticated as the human mind. The greatest computers in existence are still rudimentary compared to the mind.
The mind is simply a miracle.
But when something is so powerful, there is danger in it. You can be hypnotized so much by it and its power that you can lose your soul. If you have completely forgotten how to be aware, then the ego is created.