After much brain stroming, I find one underlying cause from which most of the dis-agreements arise.
It is the ability to distinguish Truth from its perception of it. It is like distinguishing sun from its reflection.
A note from my scientific mind:
Take a wave for example. A clear note of single pitch. When I want to draw it in a surface, it can be represented as a train of sinusoidal waveforms running across time-domain. But the same wave reduces to just a point when is drawn in the frequency-domain.
Both represent the same wave and the experience of it remains the same, but expressed differently. The truth remains the same, but the expression differs.
So also my friends, all the books and teachings about reality and existence of God or void are nothing but convenient means of expressing the HIDDEN which is anyway beyond words.
We can take our perception of it based on teachings by various teachers to get a better grip/sense but beyond that everything is unxeplainable and has to be experienced.