Materials should lend themselves to the conceptual framework of the work at hand. The basic question “Why am I painting this?” is central to understanding what it is I’m doing. If what I’m saying is better said with another material, I don’t argue with that.
Intent is paramount. There’s nothing haphazard or random in this process. All sorts of factors must align and find cohesion within this framework. Uncertainty is always present, but it’s through the winnowing process of self-honesty and devotion to what specifically I’m trying to say that something new and strong emerges.