Sequence of the Gua
The union of husband and wife should not be short-lived. Thus, after Mutual Influence, Long Lasting follows.
Commentary on the Symbol
The union of Thunder and Wind. An image of Long Lasting. In correspondence with this, the superior person stands firm without changing his aim.
Long Lasting. Prosperous and smooth. No fault. Favorable to be steadfast and upright. Favorable to have somewhere to go.
Commentary on the Decision
Heng is Long Lasting. The firm is above, the gentle below. Thunder and wind are in mutual support.
Be gentle and in motion. the firm and the gentle respond. This signifies Long Lasting.
Long Lasting brings success; there is no fault. It is favorable to be steadfast and upright. This indicates that Long Lasting accords with the Dao. The Dao of Heaven and Earth is long lasting; it never ends.
It is favorable to go somewhere. An end is always followed by a new beginning.
Sun and moon rely on the Dao of Heaven; thus can their shining be long lasting.
The four seasons change and transform; thus can their production of beings long endure. The holy sage remains long lasting in his way of life; then all things under Heaven are transformed to completion. Contemplate the Dao of Long Lasting, to see the nature of Heaven and Earth and of all beings.