If a door or machine is jammed we recognize that there may be spiritual obstacles ahead of us. To be in a traffic jam suggests that other people's concerns may be, or seem to be, more important than our own. If we have caused the jam that is, stopped the movement or flow we must work out what is causing the difficulty and take avoiding action. Jam as a fruit conserve (a mixture of fruit and sugar) suggests that only by blending the components of a project can we come up with something fresh and new.