There are many different types of people in this death dimension. This is the main reason why there are many paths in spirituality.
As human body is somehow act and react similarly this is the reason why people able to fit in existing paths. If you cut arm you bleed simple. So similarly if you practice what is teaching in that path will lead to close to that path end goal.
See how path and ignorance is related?
It is related because as I said we all have same body this the reason why the ignorance of us will be somehow same, so path help to find it and remove it.
So by seeing specific ignorance the ancient researchers developed such paths for the better and progress of those who want to take part in it. How can be so sure that they do this? See we can clearly predict it base on our body functions. If there is a mental problem then taking pills won't solve it, you have to also become mentally strong. So here comes two different forms of science one is for body and one is for mental strength. Both use science but they make different subjects just like different paths.
Similarly in spirituality there are different kinds of ignorance to remove that these paths give guidance.
Paths like karma, yog, devotion, tantra, path of knowledge ( gyan marg)....
They focus on removing the lower layers of mind. First is karma after that is devotion after that tantra.... In end... path of knowledge...
See why path of knowledge comes in end?
It is because this path start and ends with you with the truth. It don't focus on desires or happiness. It simply remove your all ignorance and help you to remove all of your ignorance. Even after this path end there still will remain eternal exsistence, so don't worry you won't become non - exsistence. It's just you will become more like exsistence itself.
Other paths first make a spritual student ready. So that they can pure their karma, their devotion for guru, and complete their desires. After that you will see that you have nothing to do... So eventually you will end up on path of knowledge.... This path remove the biggest ignorance and the final most big wall of spiritual student that is ignorance of identifications.
I am telling you this big mystery today. That the biggest illusion or biggest ignorance one is having the illusion of identifications.
Even after the path of knowledge could lead them directly to the ultimate truth without walking any other path they are so so ignorant the illusion blind them heavily that even after I tell them that you are that ultimate truth, after knowledge of oneness or after knowing that you already exsistence and you will never go anywhere no matter what.
They think I am telling about something crazy thing which is either not practical or something airy thing. See our intelligence have this bad habit to try to keep on understanding everything. In end silence is answer. I ask you only one question, are you here? Are your here right now? The answer is simple right? That is yes I am here? So this is the ultimate truth. I am here .... I always here.... I don't go anywhere..... All of these are simply changing mind and this changing is also a part of me.....
See here path of devotion works because that path teach you acceptance. After that path of tantra you could use those techniques to fasten up and break down illusion to see other dimensions and based on those experiences of different dimensions you can conclude your never changing self...... Path of yog - sum up meditation is taken from path of yog. Now you can get an idea that path of yog help you about what.
In end path of knowledge. It starts with three levels of knowledge and end with it. After seeing what you are you don't need to do anything. Literally your spiritual journey ends here. After that if you are having doubt and difficulties on this path of knowledge. Then it simply means you have left ignorance. So what one can do? Either leave that path and try other path. Or contact your master he will help you to remove your ignorance. If you have one, this why having guru is important.
In end my final thought is.... Don't take much tension if you feels like you can't understand this because here is a good news even if you don't understand this. Even if spirituality isn't your cup of tea still from highest perspective you would still remain ultimate truth. So even if you think you fails from end point of spirituality you actually never fails because you will remain that presence that exsistence itself...