Today I received a comment by an observant reader that there is an error on “Calculations of Palace Elemental Nature using 纳音五行 and the Derivations of Star Characteristics”. When I reviewed the post, I realise that I mentioned Tian Liang (Yang Earth) will express negative effect at Gui Hai palace (Yin Water). That is incorrect, it will at most be neutral. It will only express most negative effect at Wood (especially Yang Wood) palaces. And in addition, as per some of the readers’ wishes, I will also expand more on Nayin and Periodic Phases in due course.