Dust 
To dream about dust indicates there are parts about yourself that you haven't paid attention to.
To dream that you are covered in dust suggests that others' shortcomings will come to bear upon you.
To dream that you are dusting indicates that you are getting rid of previous errors and beginning anew.
Sand
To dream of sand indicates that you are having a change of heart or your position on a certain issue has been altered. It may also mean that you need to shift your outlook to something more productive or significant.
To see wet sand in your dream signifies that your life is in a chaotic state and you need to achieve order.
Cobwebs
To dream of cobwebs implies that you are wasting your natural gifts. You haven't taken the time to develop these skills and qualities.
Whirlwind
To dream of yourself standing in front of an upcoming whirlwind is a warning. There will be changes to your waking life. These changes may bring about uncomfortable feelings and situations. You may experience a loss, or scandal may enter your life. Be leery, as the thoughts and desires you are hiding will soon be brought to the forefront.
Sandstorm
A sandstorm in a dream symbolizes overwhelming confusion. You may feel lost in a sea of responsibilities and needs.
Garbage Truck
To dream of a garbage truck rumbling in the distance implies an unconscious fear of releasing an old habit or thought that does not serve you. A garbage truck idling outside your home or emptying your bins suggests that it is imperative that you give up an unhealthy habit as your health may become adversely affected.
Aurora Borealis
The appearance of the aurora borealis in a dream symbolizes an uplifting of the spirit and feelings of affection and passion.
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