Write the next sentence in the following story.

How to become an ashtanga yoga instructor
Build your skill set.
Becoming a certified yoga teacher will require you to already be familiar and skilled with the form of yoga you practice. Certification courses will likely be intensive and would not be well suited for a beginner.
Make sure you already feel confident in your knowledge and skill with yoga before seeking to become a certified yoga teacher. You should have a working knowledge of things like the asanas, pranayamas, chants and mantras associated with ashtanga yoga.