The symbol of igniting a light or fire represents the beginning of an exploration of the spiritual realms. Kundalini – the energy of consciousness or spiritual energy – is perceived as heat at the base of the spine, which may be intensely hot or pleasantly warm. Dreams often picture a spontaneous awakening when the energy, having been ignited, travels up the spine to the top of the head, bringing certain awarenesses along the way.
Psychological / emotional perspective: When the ignition on a car will not fire properly we have not been able to provide the emotional ‘spark’ that allows us to begin a journey or task. When a huge conflagration, such as a forest fire, is ignited in dreams it symbolizes passion. When we are reigniting a fire we must return to and perhaps adjust our original ideas.
Material aspects: More mundanely, dreaming of igniting or lighting a fire suggests that an initial surge of energy or power is needed to start a project or task. In this case what we use to begin the burning will be important.
A match might suggest less effort than a firebrand, for instance.