1. Knowledge, knowing and realization
2. ⁠ Accumulation of knowledge vs cultivation of knowledge 
These two are connected. 
The first point is about the process of moving from ignorance and reaching realization and the second point is about specific aspect of that process or precisely how knowledge becomes a tool of change and transformation. 
Ajnana - jnana - vijnana or ignorance, knowing and realization is ever going life process. It means there is no end to learning and realizing and it means that there are two types of ignorance: ignorance as a darkness and ignorance as a mystery. And according to this facts we can conclude that ignorance is bigger than any knowing and this is not to be discouraged but to be humble. Knowledge is always compared with a sword, a tourch, a fire, a walk on the sharp edge of a sword. It is not a coincidence. And it is so knowledge can be a tool for bondage but also for liberation. 
How knowledge becomes the bondage? And how it becomes the tool for liberation? 
Answer on these questions lies in understanding the difference between accumulation and cultivation of knowledge. what is the difference between accumulation and cultivation?
Accumulation of knowledge is accumulation of informations which leads one out of ignorance for sure but the very process of accumulation by the time becomes the bondage and also will not lead to liberation or real freedom . Why? Many reasons but all have one root and that is ego! If knowledge strengthen only ego identification then it is a wrong path. Knowledge for sure gives confidence but if confidence is not accompanied by Humility and Gratitude then knowledge will not become knowing but intellectual gymnastics and it will lead in more ignorance which manifests as arrogance and which leads towards downfall and not elevation. We can see such examples in human society and behavior everywhere. Just because of little knowledge many start assuming that they know all. Besides accumulation is a linear process and it is predictable ,such knowledge becomes just a certain pattern and part of the ego identity. Accumulation of knowledge rarely leads into knowing, understanding and realising simply because of lack of humbleness and gratitude. And action that is consisted of both is selfless service. And selfless service is a sign that knowledge or information have become knowing and deeper understanding. It further means that knowledge is applied and practiced in a right way and it is not part of ego identity but rather a part of inner alchemy, transformation and liberation from ignorance as darkness.
Guru and especially SatGuru is the one who helps and leads one from the darkness of ignorance through the process of knowing, purification and transformation to establishing in the highest, the highest realization. That is why the meaning of the word Guru is the one who removes darkness. But guru also means the one who is heavy and guru is heavy only to stubborn and fixed and rigid ego structure or to arrogance. 
So if we just accumulate or gather information and due to certain intellectual capacity we just play with it or just repeating the words without having understanding of them or personal experience and realization it mean we are not doing the main work with knowledge and that is applying it and practice it. That is why it only becomes intellectual gymnastics and a bondage. And the bondage of knowledge is worse and stronger then the bondage of ignorance as in knowledge even if one is not particularly arrogant the problem is that one becomes satisfied with just having information. AND KNOWLEDGE IS VERY POWERFUL AND THIS IS THE FIRST CHALLENGE IN HANDLING ITS POWER, having information doesn’t mean realisation and many are under false notions that by having information is the same as knowing. And then they stop their growth and they stop at the very beginning of the process.