When the arcana of both blocks coincide, there is no vector either upwards or downwards. The system reads this as a point from which both directions are equally open — and as the absence of any leaning of one's own.
A person in this position is drawn neither to remaking the world nor to quiet. They take the shape of whatever surroundings they land in: beside demanding people they become demanding, beside indifferent ones, indifferent. From this comes the ability to reach agreement where others dig in: there is less of a position of their own that has to be defended.
The practical conclusion concerns upbringing and company. For a balanced vector the surroundings count for more than for any other, and the choice of circle here is not a secondary question but the main one. The system attaches such weight to this that it holds years of balance to be a time when parents should stay closer to their children than usual: what is laid down in those years decides which way the vector will swing.