Lessons from a Master of Zen

When facing a single tree, if you look at a
single one of its red leaves, you will not see
all the others. When the eye is not set on
any one leaf, and you face the tree with
nothing at all in mind, any number of leaves
are visible to the eye without limit. But if a
single leaf holds the eye, it will be as if the
remaining leaves were not there.

~ The Unfettered Mind, Takuan Sōhō (沢庵 宗彭, 1573–1645)

Reworded and simplified, by mangaka Takehiko Inoue:

Preoccupied with a single leaf... you won't see the tree. Preoccupied with a single tree... you'll miss the entire forest.  See everything in its entirety...effortlessly... That is what it means... to truly see.            

  ~Takuan Soho, (沢庵 宗彭, 1573–1645)