As a divinatory line, the first nine of Great Possession tells a querent that whatever wealth, opportunity, or capability the reading concerns has not yet met any real test or opposition. The absence of injury here is not achievement, only circumstance, and the line's explicit condition, that there be no error only so long as difficulty still to come is kept in view, is a warning against mistaking present ease for permanent safety. A reading landing here often marks the earliest stage of a fortunate situation, one whose real challenges have not yet arrived.
Correctly placed at the base of the lower trigram Qian, the line carries none of the caution the fourth and fifth lines will later require, precisely because nothing has yet risen high enough to draw scrutiny or envy. This is the natural condition of beginnings: abundance not yet displayed is abundance not yet contested. The querent is advised to use this quiet interval to prepare rather than to assume it will last.
Read against the hexagram's full arc, from this untested start through the generous third line, the discreet fourth, the trusted fifth, and the aided sixth, the first line supplies the foundation every later line depends on: an early awareness that great possession, however innocent now, will eventually require the discretion, generosity, and humility the hexagram spends its remaining lines describing.