You must consider the aspects of the chimney to interpret its meaning. If it was a very tall one, it foretells unusual achievement; an average-height chimney indicates favorable times ahead but nothing spectacular. If there was smoke coming from the chimney, good news could be on the way. A chimney that is cracked or in bad repair suggests that some expected troubles will materialize; if the chimney actually collapsed or fell down, you will soon have cause for celebration. Sparks rising from a chimney are a warning to avoid antagonizing an influential colleague.