Answer: When he starts going through “ascents” and “descents.” In these states we start studying how dependent we are on our inner changes. And that is only the beginning. This is how you are being played with by the upper force, even though for now it’s happening in the plane of this world.
That is when you will start being thrown from one world to the other, sometimes being elevated and sometimes being cast down. Then you will feel how inconstant everything is.
Imagine that your senses were changed somewhat so your eyes saw the world through X-rays and you had radars instead of ears. What kind of world would you feel? You would go crazy from the overabundance of information coming at you, from the entire range of waves because you would hear people talking here and there and everywhere at the same time, even thousands of kilometers away from you. You would see through walls and would be aware of everything that happens.
Accordingly, your brain would also have to be developed to the same extent in order to process this flow of information, as well as your nervous system. You would be a completely different being, and all that just if we were to slightly expand the range of our perception in the same world.
Yet in Kabbalah we talk about qualities which we currently lack entirely and a fundamentally different approach. For example, imagine that you started feeling the sensations of other people, dressing like a ghost into one person, then another, and then a third….
From the 4th part of the Daily Kabbalah Lesson 1/12/11, “The Quality of the Hidden Wisdom – in General”