"Mike, reading your clear explanation and diagrams in relation to the 8 Trigrams, I am interested in your thinking on the compass points associations in the Southern Hemisphere, if you have time to share on this point. I write from Melbourne, Australia ,and am a long time chun tzu of the Book of Change. As you are aware, Summer for us is with the sun rising and setting further to the South in Summer and in Winter vice versa, with associated longer sunny days and shorter winter days at opposite times It appears to me to maintain the agricultural and other connections of the associated trigrams, the compass directions may be regarded suitable altered, with of course East and West remaining the same. The same issue arises in Feng Shui, where I have read at least one author regarding a change of the compass points for the Southern Hemisphere as acceptable. It is the meanings anyway of the directions etc that is principal, but actually delineating a different layout for the Southern hemisphere as far as the associated points alone appears acceptable. Do you think so?" - Don L.
My own interpretation of the Eight Trigrams is based upon an integration of concepts from Western Magick, Neo-Paganism, and Chinese Taoist thinking. They also include my experiences with the flow of the seasons from my walking and gardening in the Northern Hemisphere. Where I live in Red Bluff, Northern California, the weather is wet and cool from November to April, and hot and dry from May to October. I have also only used the Before Heaven version of the Bagua. Therefore, my tables of correspondences represent my own ritualistic Sacred Circle practices and spiritual viewpoints.
I would recommend making adjustments to your Eight Trigrams correspondences based on the fact that you are living in the Southern Hemisphere.
I am sure, for example, in Melbourne, at Christmas time, the imagery used is not Frosty the Snowman, sleigh bells ringing, and winter wonderland. You guys probably go swimming at the beach, and Santa gets a suntan. Changing places is one way of Changing Mind.
The I Ching is a far more complex symbolic system with Buddhist, Taoist, and local divination aspects. I follow standard sources for the I Ching, and don't know of hemispheric variations.