All kind of blades or knives represent great times, but only if they are shiny and new, because the old blades signifies false friends and relationships.
Dream dictionary: Blades dream meanings
Dreaming that you are on roller blades, can be interpreted as symbolism of rapid flow of your life. You are moving fast through life with tremendous ease and firmness of your purpose. You are experiencing a sense of liberation, relaxation and freedom.
The faster the blades move, the more incomes we will have. Seeing ourselves trapped by them announces difficulties in business.
When you dream of seeing or holding a blade, you are trying to finish something off. There is a possibility that you are trying to make the final decision at some project or personal life. Youve got to think everything through very well, as it seems that the decision is very important for your future. The other meaning of this dream could represent one of the most popular movies: Blade, therefore maybe youve been watching too much of television, because the blades associating with the name of this film.