It is very common for ex-smokers to dream about smoking.
This type of a dream could be called wish fulfillment or a compensatory dream.
The smoker misses smoking.
He can not smoke during the day, and therefore he smokes in his dreams.
If you are dreaming about being surrounded by other people’s smoke, you may be experiencing some confusion and anxiety in daily life or in regard to a particular situation.
Smoke or smoking usually depletes people of energy and hampers ones ability to think clearly and act directly with the issues at hand.
See also: Cigarettes