Originally posted by Ceicei
Well, sets are just groupings of certain moves together. Block Set (block basics), Stance Set, Finger Set, etc. They are a lot more basic (simple) than forms.
It's just a tool to help the student be aware of the relationship and motion of each basics. However, these sets are more than just mere basics. The sets also have motion between the moves (particularly with the Stance Set). By examining the motion between moves, we also learn how to transition properly.
Given that sometimes we have to do a block after another block, knowing how to transition helps. Same goes for finger strikes.
As I've mentioned, sets are just practice tools and help to reinforce separate basics into our minds. It helps us to "see" the basics. The techniques are sometimes done at a point where people may just do them without noticing the components in there.
The sets are the "letters"; forms and techniques are the "words" of varying sizes and meanings. Once we've learned these, we can form "sentences". How good we are with everything we've learned depends upon how direct or eloquent we can be with our "physical language". We should be able to do self-defense without having to think as it should be well ingrained within each of us.