Simply look,
Not in the realm of your ideas,
But in your direct experience.
Can you find any lines of division?
Anything that actually separates one thing from another?
Can you find something that divides this from that?
A boundary between inside and outside,
Between here and there?
Is there actually a line separating self and other,
Dividing you from the world?
Can you find a boundary there?
Look and see if any such lines can be found.
Is reality actually made of separate pieces,
Or is there only an inclusive continuum,
An undivided field of experiencing,
Completely free of any division or separation,
By its very nature?
If one wants to argue that it takes practice to realize this,
Then let the practice be to simply see that this is already the case,
To look and see that nothing is actually separate from anything else,
That seamlessness is just the nature of things,
The way reality has always been.