Oneness
Expressed
It loses its expression
Defined
It loses its definition
In its emptiness
It is the cradle of all existence
In its fullness
It is creator of all things
Ever empty
It surrenders into the mystery
Ever full
It creates into the unknown
Of one source, they differ in name
Yet both arise from the one
Oneness beyond one
Herein lies the key to all mysteries
Duality
Beauty is seen only because of ugliness
Greatness is known only for its lack
Emptiness and fullness are born of each other
Difficulty and ease create one another
Long and short grow out of each other
High and low reflect one another
Sound and listening complement each other
Front and back follow one another
And on it goes…
Thus the wise pay no heed
Their acts without words showing the way
So do all things flow without thought
Creating without possessing
Acting without attachment
Achieving without claiming achievement
Existing without laying claim to existence
Thus moves all life unto eternity
The Way of the Wise
Chapters One and Two
Taken from Lesson 20 of the Transformation Course, available at this link