The Buddha once said this to the Bhikkhus:
"Bhikkhus, as to the source through which perceptions and notions tinged by mental proliferation beset a man: if nothing is found there to delight in, welcome and hold to,
In the pasture of this world, I endlessly push aside the tall grasses in search of the bull.
Following unnamed rivers, lost upon the interpenetrating paths of distant mountains,
My strength failing and my vitality exhausted, I cannot find the bull.
I only hear the locusts chirring through the forest at night.
The bull never has been lost. What need is there to search? Only because of separation from my true nature, I fail to find him. In the confusion of the senses I lose even his tracks. Far from home, I see many crossroads, but which way is the right one I know not. Greed and fear, good and bad, entangle me.