A meditation on meditation

Driving through the most rural stretch of my trip, during that long passage where all you see is the road ahead flanked on either side by miles of trees, I was wondering about the ways one could learn to deepen perception – your awareness of living in the present instant and the desire to notice “everything.”  Henry James described the artist as “one on whom nothing is lost.”  How does one make awareness more intense?  When you are looking at the motif or at the painting’s surface itself, how does the artist ramp up the sharpness of  involvement? 

Especially as regards landscape, not only seeing just a motif in front of your eyes but responding to everything, how do you effect a complete immersion into that place – finding that aspect of it that Bonnard longed for: the peripheral vision that is circular, having no beginning or end?