The hexagram describes an external communication (rather than an internal
spiritual connection), as epitomised by the illumination of light. It means shining a light, seeing a light or seeing what a light reveals.
It implies that the light is bright, that the medium
through which it shines is transparent and that the light is quickly and clearly perceived. The hexagram means successful communication.
It may be that one's feelings and thoughts can be externalised to be perceptible to others or that another’s expression can be
clearly perceived, or that one's environment is being clearly perceived.
Brightness of expression and clarity of perception
are assisted by clarity of mind.
Just as it makes communication fast,
brightness passes quickly. Be quick to get the picture.
The hexagram may also be referring to the presence of light or clarity, perhaps to a bright sunny day
or the light of a fire, or to a general openness to clear communication.