Maimonides has already given a true allegory about that: “If a line of a thousand blind walk along the way, and there is at least one leader amongst them who can see, they are certain to take the right path and not fall in the pits and obstacles, since they are following the sighted one who leads them.
But if that person is missing, they are certain to stumble over every hurdle on the way, and will all fall into the pit.” (Baal HaSulam, “Introduction to The Book of Zohar,” Item 57)
Question: Is it possible for a person who has already found a teacher and has begun to follow the right path, to later fall off track?
Answer: This indicates a lack of connection with the teacher. A student must constantly keep this connection alive. If he doesn’t renew it, the teacher continues to move forward, while the student gradually moves to the side on a tangent until the connection between them is totally lost.
It is very interesting to observe this process, how a student hears less and less, comes to the lessons less and less, and then disappears.
The main thing is that the teacher cannot say anything about this to the student. The student must scrutinize this himself and understand how to operate in mutual cooperation with the teacher.
But it must be clear to him, that the moment he does not hold on to the teacher, like a child who holds onto a grownup, he doesn’t know where he is. After all, there are many situations when he is like a small child who is lost in a crowd, and doesn’t know who to hold on to and where to go. He must acquire this feeling of closeness or detachment from the teacher.
From KabTV’s “Fundamentals of Kabbalah” 2/12/18