This tutorial was much more difficult to follow as there were a lot of complex components I never heard of before. As I played around with them though, I began to understand how I could manipulate the U and V axes. I created a cool croissant/worm like form by plugging the output of the Evaluate Surface component as a radius for the sphere. When I attempted to voronoi this form though, my computer crashed probably because there were 40 spheres all populated with 10 points.(luckily I took these screenshots before).