It means that light and shade, long and short, black and white, can only be experienced in relation to each other; light is not independent of shade, nor black of white. There are no opposites, only relationships. --from The Lankavatara Sutra
Jesus said to them, 'When you make the two one, and when you make the inside like the outside and the outside like the inside...then will you enter the Kingdom. ~from The Gospel of Thomas
In a nondual state there are no opposites. There is neither an awareness of being passive nor an awareness of being active; awareness without content comes near. In a nondual state there is no contradiction or paradox; common language fails in its ability to describe events from a nondual perspective. The sense of "I am the doer" is permanently absent as is the sense of "I am not the doer"; what comes near is "things being done" as there is no "feeling" of I and there is no experiencer. ~Jan Barendrecht
The Yin and Yang symbol illustrates that all apparent
opposites are complementary parts of a non-dual whole.