Part 4: Back to Needham: Semen-Mercury: Yin within Yang

Back to Needham:

 In counter-current style he not only retained and conserved secretions usually lost from the body, but obliged the Yang within the Yin of saliva-lead to go downwards, and raised up the Yin within the Yang of semen-mercury. p. 59

Now contrast that to the normal definition of Yang within Yin of Water!!

So Double Reversal again, p. 61, Needham:

The Yang central line in Khan would of itself tend to rise, the Yin central line of Lie would of itself tend to sink, but just the opposite was to be effected.

The semen-mercury is therefore the double reversal - the rising of the (falling yin qi of the liver).
The saliva-Lead is therefore the double reversal - the sinking of the (rising yin qi of the kidney).

So alchemically Earth is ABOVE Heaven!!