Alfred,

>> Perception or extra perception while living itself is purely an experience of INDIVIDUAL PERCEPTION. This again is not pure because what it knows is all learnt from teaching of the external stimulis. <<

Yes, I completely agree.  Is there any reality, physical or otherwise, experience is not one of "INDIVIDUAL PERCEPTION"?

>> This question of perfecting the senses isn't accessible till one stops interpreting. This interpretation is the biggest problem or a hinderence. <<

While I agree that interpretation is a big problem I do not share your belief that it is the "biggest problem" nor do I share your belief that it is possible to "stop interpreting".  In the family tree of perceptual problems I see beliefs as being much closer to the root and interpretation as being much closer to the leaves. 

In my view all information that enters our eyes or ears, physical or nonphysical, is filtered through our beliefs before it reaches our awareness.  In my view this filtering through our beliefs is what leads to our interpretation.

>> Any claims to have gained knowledge over AFTERLIFE still may still be an ignorance. <<

I would agree that claims of afterlife knowledge "may still be an ignorance" and so the question really becomes, when is it not?  The basic premise used in the system I teach to deal with this issue is:

Find a way to contact and communicate with someone known to be deceased.

Gather information from the person you have no other way of knowing except through that contact.

Find a way to verify the accuracy of that information, such as by comparing it with a physical living person who knew the deceased.

Accuracy of the information provides some level of evidence that this deceased persons still exists.

Hundreds of people have successfully used this basic premise to prove to themselves through their own direct experience that our afterlife exists.  They have learned to deal with the filtration of their beliefs, and it's resulting interpretation.

Bruce