This is a rotational state in which the pelvis and torso face towards the outside of the turn.  During a right turn, the pelvis and torso would be facing left of the direction the skis are pointing.   It's a body position that enhances the use of angulation.  It also helps pronate the outside foot, which directs pressure to the turning edge of the outside ski.   When implemented skilfully, skiing countered imposes no steering force on the skis, to a degree large enough to disrupt the quality of a carved turn.