Was reminded of this, when I heard it quoted in some music recently.

It’s probably Bruce’s most memorable quote is ,  “Do not concentrate on the finger or you will miss all of the heavenly glory!

BlacKKawaru summaries it perfectly with,

It means that you should focus on the meanings behind action and not the actions themselves.
If someone is pointing to the moon and you focus on the finger, you do not see the moon.

If the instruction is to kick with emotion and you focus on the command, you are listening to the instruction, not improving your kick.
Even if your kick gets stronger (i.e. through anger) it will not become better.”