A monk asked the priest Kan-feng:
-Bhagavats in the ten directions got one straight road to Nirvana. I dare to ask where that road is?
Kan-feng lifted up his staff, drew a line in the air, and said:
-Here it is. more...
The things to watch are comparative judgments, thoughts and worries. I don't think you need to watch any in the physical world of form. I'm looking at a computer right now but it's basically empty until I employ the keyboard. Observing doesn't effect any object. If you watch from within the activity of the mind does the work of Buddha.