The lines and spots can be used to add texture and/or create shading that indicates form. Drips can be poured from a container or allowed to flow off of a stick or brush that has been dipped in fluid paint. The uncertainty of when the paint might drip and how much it might drip removes the artist from purely intentional mark making, and a level of indeterminacy is introduced. The presence of the accidental within dripping can bring a natural quality to the spots and lines. The fluid sense of movement embodied in the dripped/poured paint can give the piece a dynamic energy.
Featured: Can I Look at This Painting Without Thinking of Jackson Pollack Thinking About Janet Sobel? by Charles Morris.