Here is one view on it:
en.wikipedia.org
I have tried to explain this many times but you can't use words to do so directly because you can't transcend thought by thinking. We live in a delusional state, the world of opposites that have no basic reality but exist only as memories connected to the past experience of pain and pleasure. In this way all naming by thought is from the past and evokes emotions form thinking with words that do not correspond to what is in the present. A person can suffer from obsessive thinking inside of a fortress. Thought is fear, fear of feeling the feelings that happened in association with learning to think, to name things. Thought is division. Thought makes comparison possible. It creates the illusion of opposites.
Let us take an typical example of a Zen enlightenment. A student will be set a Koan to meditate on, an existential question the mind can't get a hold of, what is the sound of one hand clapping, what is the world without opposites that create our reality. A temple bell rings and suddenly the monk awakes. The question is no longer a question because the monk has gone somewhere else. There is only the present and the ring of the temple bell. The truth is just so very very easy. It is the ground of out being. Opposites disappear when thought ceases to exist and one enters into the awareness only of what is present. Enter the true self and the joy of being.
Shamans call it stopping the world. So what?
Please don't dominate the rap, Jack
If you've got nothing new to say
If you please, don't back up the track
This train's got to run today
I spent a little time on the mountain
I spent a little time on the hill
Heard some say, "Better run away."
Others say, "You better stand still."
Now I don't know but I been told
It's hard to run with the weight of gold
Other hand I have heard it said
It's just as hard with the weight of lead
Who can deny? Who can deny?
It's not just a change in style
One step done and another begun
And I wonder how many miles?
Spent a little time on the mountain
Spent a little time on the hill
Things went down we don't understand
But I think in time we will
Do we keep on coming or stand and wait
With the sun so dark and the hour so late?
You can't overlook the lack, Jack
Of any other highway to ride
It's got no signs or dividing lines
And very few rules to guide
Spent a little time on the mountain
Spent a little time on the hill
I saw things getting out of hand
I guess they always will
I don't know but I been told
If the horse don't pull you got to carry the load
I don't know whose back's that strong
Maybe find out before too long
One way or another
One way or another
One way or another
This darkness got to give
One way or another
One way or another
One way or another
This darkness got to give
One way or another
One way or another
One way or another
This darkness got to give