The spark suggests fire and therefore love. The ?essential spark? is the vital principle in life; we need to appreciate our own lust for life. The spark of an idea suggests the germ of a creative potential that, given the opportunity, will become much bigger. Since the spark also represents the basic life force, emotionally we can accept the myriad possibilities offered to us. A spark in a dream represents a beginning. Being aware of a spark is to be conscious of the germ of an idea that may be brought to fruition in waking life. From a physical perspective it is a small thing that gives rise to a greater one. You might also like to consult the entries for Electricity, Fire and Lightning.