Stairs are a means of transition from one floor of a building to another. This can often be equated with a transition to a higher or lower spiritual level/experience. Since stairs require us to walk and provide no powered assistance, they will frequently be a means of symbolizing this transition when it involves some degree of effort on our part.
* Symbol meanings provided by www.mydreamstories.com should not be used as a dream dictionary. They are for reference only and both dreamer and interpreter should be careful to listen to the voice of Holy Spirit as to what any particular symbol means in any specific dream.