The Differences Amongst Us?

Different we do all seem
Seemingly alike also we're
Where differences are not 
Are not also I, You, S/He
What am I saying?
If I were to remain still
Can I still talk thus?
Without recourse to words
Vanish thoughts entire
Vanishes also the mind
What then exists
Only It that remains knows
And who is left to wonder
Whether It, too, knows not.