It's easier. Simply imgagine the energy (colored or elemental) accumulating between ur palms. Give it a name and program it. Then send it off to do its task.
This way is better because u can really feel & intensify the energy instead of just visualizing.
Hail Father Satan & the Powers and Forces of Hell!
Hail Almighty Duchess Gomory!
Hail Almighty Duchess Bune!