With the Vortex Pedestals you needed for Thaumcraft Infusion, you can also do something different.
Aura Cascade has a mechanic called Vortex Infusion, for which you need four Vortex Pedestals and a Vortex Controller.
This uses the same energy system as the Cascading Processor, but you need to be aware that some recipes require different Aura Colors.

For now you can use this system to create the different Arcane Gems that Aura Cascade has to offer. These can in turn be used to craft an Arcane Prism, your main goal in Aura Cascade.
For details, check the Encyclopedia Aura.