"When somebody grabs a movement, you're kind of locked into it. It's all par for the course"

This quote by John Cale is describing the concept that once you have actually dedicated to a specific action or course of action, it is difficult to change it. He is suggesting that as soon as you have actually begun something, you are "locked into it" and needs to accept the effects of your choice. This is a metaphor for life in basic, as when you have decided, it is typically challenging to go back and change it. The phrase "par for the course" is a playing golf term which suggests that something is expected and accepted as part of the video game. In this context, it suggests that when you have actually made a decision, you must accept the effects as part of the process. This quote is a suggestion that we need to think carefully prior to making choices, as when we have actually dedicated to something, it is typically challenging to change our minds.