So many potential meanings to this card! Some say "swift motion," some say "Act now!" and some say "Look where it's pointing!" In a reading, it could be good to look at which card the EIGHT of WANDS is pointing to, that might tell you where all of this swift energy is going to land.
My general interpretation of Eight of Wands is it indicates that intention has been set, energy has been raised, and action has been taken. That thing the queerent has set out to accomplish is about to happen. This card reminds me that in some ways, I need to let go of my attachment to how the outcome will look, and get clear about my vision of myself in the outcome. It's about to happen. Am I ready to pounce on it once it does?