To dream of hitting the jackpot is an indication of a wonderful idea burgeoning within your unconscious mind. To dream of lights flashing and coins flowing onto the floor suggests that you have all the ingredients necessary to create an abundant and enjoyable life. To dream of a casino or gambling hall filled with the sound of other people's jackpots going off implies an underlying fear of lack even though your life may be rich with abundance.
To dream of witnessing debate suggests a decision that hasn't been confidently and wholeheartedly made. There may be a situation in your waking life that you believe you have resolved, although underlying this resolution is a niggling doubt.
Participating in a debate in a dream indicates that you may have been less than true to yourself. A re-evaluation of a recent decision may be called for.