Anyone care to share their thoughts on the 8 Ways of Bak Mei? Are these practiced as techniques or concepts in the system?

Ive also seen different sets of 8 listed around, this is one of them:

1. 抽Chau (lash)
2. 割Got (cut)
3. 索Sok (search)
4. 捶Chui (beat)
5. 衝Chung (rush)
6. 鞭Been (whip)
7. 彈Daan (spring)
8. 枕Chum (sink)