They are strong and enjoy the exercise of power, but in their negative states this can lead them to dominate others by force alone.
Tyrannical fathers and overbearing bosses are typical negative Vines, in that they expect absolute obedience from others and will not be overly concerned with winning hearts and minds as long as their orders are followed. In this respect Vine is very different from Vervain. Vervains attempt to convert others to their way of thinking; Vines are content with the simple imposition of discipline.
In their positive aspect Vine people make wise, gentle and loving guides who can inspire and lead others without resorting to force. When we fall into issuing orders the remedy is given to encourage us to show this positive side.