Speed Force
The Speed Force is an
extra-dimensional energy field that acts as a separation from the multiverse proper and the Sphere of the Gods and acts as a sort of
“valhalla” or
“heaven” for speedsters. It supplies the kinetic energy for the entire multiverse,
literally putting reality in motion pushing it forward. Wally has a connection to the Speed Force, likely the purest out of any other speedster (other than Barry, who generates it), and can mainline its
infinite and endless energy. At one point, he even manages to
control it. This is what gives
him his and every other speedsters their super speed, as well as all his other abilities.
The Still and Speed Forces can destroy Hypertime (Justice League Vol 4 #20),
Hyper-Time is like "three temporal dimensions". Like time beyond time, (Grant Morrison's intention of Hypertime seems to be a bit higher than mere 3D time though),
This even binds the Sphere of the Gods.