What does it mean, 'inner' and 'outer trigram' (popup)
Wind below Water: the well was the center of the community. People had to maintain it together, and the water was for all of them. It is the symbol of social cooperation.
Ideogram of the hexagram name: probably a map of a well in the center of 8 fields. According to Lindqvist it represents the wooden structure at the bottom of the well.
The 'Great Image' says: Above wood there is water, a well. The noble one encourages the toiling people to stand by each other.
Hex.48 is the contrast of 21, which is about deciding, choosing.
Hex.48 does not divide or choose, but accepts all, and urges them to work together for the wellbeing of the whole. It is replenishing and an inexhaustible source, which will benefit all if it is maintained and accepted.
Water is the soul. If on the outside, it is the soul you share with others. Your empathy, connection, and also their feelings towards you and each other. Wood or Wind is influence, it is the source of the well of your inspiration. If you share a well with others, you can work and live together in harmony.