From the San Diego Museum of Art in Balboa Park.  The artist is Pan Gongkai (b. 1947) and this is a portion of a very large piece that runs horizontally to span many feet of  a wall.

I love the fat and thin strokes, the varying densities of the ink, the fluidity (!) of the motion, the balance of white space.  This was a treat; I had gone to the museum to see a quilt show whose origin is the Boston Museum of Fine Arts.  I had seen the quilts in Boston two summers ago and it was a pleasure to see them again.  But this was an added bonus!