The studio-bound business of mixing colors, selecting and arranging tools and so on is only preparation for the moments when wet paint contacts the substrate. Two or three such moments usually suffice for a painting. Maybe four. Really, the technical means of making is incidental; the density, the weight, the particularity of optical sensation reside in the painting itself, which is where the energy is focused in a few square feet. That is what I like most about painting: the energy is focused.