The youngest son in the I Ching trigram family is the symbol of The Keeping Still Mountain.
According to Wilhelm:
Keeping Still is the trigram of the northeast, where beginning and end of all creatures are completed. He brings them to perfection in the sign of Keeping Still. … The trigram Keeping Still, whose symbol is the mountain, is of mysterious significance. Here, in the seed, in the deep-hidden stillness, the end of everything is joined to a new beginning. Death and life, dying and resurrection—these are the thoughts awakened by the transition from the old year to the new. … Keeping still acts in the dog.
Painting inspired by the Chinese character for The Keeping Still Mountain.
My original illustration for The Keeping Still Mountain