Interpretation of the above text:
Single-minded yθxθn yθyθ: describes doing things with one heart and one mind, only doing one thing.
Focus on jùjīng Hu shén: Describe focus and high concentration.
Keep your eyes fixed: Keep your eyes fixed. Describe a high concentration.
Don't squint: describe a serious look and expression.
Concentrate on zhuān? xīn？ zhì？ zhì？ : Describe doing things seriously.