Mystical approaches attempt to understand creativity in terms of some kind of spiritual or other extra-scientific force. According to the investment theory, creativity requires a confluence of six distinct but interrelated resources: intellectual abilities, knowledge, styles of thinking, personality, motivation, and environment. Concerning the confluence of these six components, creativity is hypothesized to involve more than a simple sum of a person’s level on each component. Creativity, according to the investment theory, is in large part a decision. The view of creativity as a decision suggests that creativity can be developed. Teachers also can stimulate creativity by helping children to cross-fertilize in their thinking to think across subjects and disciplines. Creative contributors make different decisions regarding how to express their creativity. The basic idea is that creativity can be of different kinds, depending on how it propels existing ideas forward.