If you can be aligned and tranquil

Only then can you be stable

With a stable mind at your core 

With eyes and ears acute and clear 

And with the four limbs firm and fixed

You can therefore make a lodging place for the vital essence

The vital essence: it is the essence of vital energy

When the vital energy is guided: it (the vital essence) is generated 

But when it is generated there is thought

When there is thought there is knowledge

But when there is knowledge, then you must stop

Whenever the forms of the mind have excessive knowledge 

You lose your vitality