To dream that you are in a basement symbolises your subconscious mind and intuition. The appearance of the basement is an indication of your subconscious state of mind and level of satisfaction. It represents primal urges, animalistic desires and basic needs. The dream may also be metaphor for “abasement” or being “debased”. Are you feeling humbled or unworthy?
To dream that the basement is in disarray and messy signifies some confusion in which you need to sort out. These are things that you have “stored” away or put aside in your mind because you do not know what to do with it or you do not have the time to deal with it. It may also represent your perceived faults and shortcomings.