Hi Long Chen,
Nice to see you and Eternal Now too. 
As to your
question whether one's enlightenment will hinder oneself from
relating in a normal society, I supposed not. For one that has
arrived at the fundamental ground, whatever role he assumes,
whether as a monk, teacher, businessman or a beggar, he remains
free. When it comes to practical application, he will naturally
know how to harmonize and fuses completely with everything.
In Buddhism, No-Self is not a question of morality; it is a
question of the true nature of the phenomenon reality. From the
marco universe to the quantum world of quarks, from time to space,
from body to consciousness, all exhibit this characteristic.
Emptiness prevails everywhere. Even right now at this moment, we
witness the Emptiness truth in action -- the moment ceases as it
arises. There is no changing thing (Self), only change. Viewing
things as solid entities and categorizing them as 'this' or 'that'
is due to the poverty of our thinking mechanism, it is not
reality.
The act of labeling will make 'things' appear solid and separated,
to the extent that even when we are dealing with the very essence
of ourselves -- the pure awareness, we make it an 'I AM'. 'I
AMness' is perhaps the furthest the Thinking-Mind can give way and
it is never meant merely as an expression for communication. We
seek, find and attempt to locate it as if it is a solid entity
hiding somewhere. As long as this wrong way of 'seeing' persists,
there will be attachments and sufferings. This is the way it is;
you cannot eliminate attachment with an 'I'. Therefore the capacity
to see by awakening the emptiness wisdom is especially important in
Buddhism.
Bare attention that is taught in insight meditation trains one to
see without labeling, without a layer of words. It presents us a
new mode of experiencing reality as an ever changing inseparable
flux. Without this layer of thought, 'I' has no place to reside and
slowly the bond of 'I' will loosen and subside. If the karmic
condition ripens, the mysterious relationship between the pure
awareness and the phenomenon world will be revealed.
The experience of I AM is an intuitive experience of our naked
consciousness. It is seeing Consciousness face to face and touching
Consciousness directly without in between thoughts. But its
Emptiness nature must be understood to progress further. I got to
go now....do take care.
Thusness
