It should be understood in the sexual sense; settling accounts with the existing marriage, or the marriage that you will enter into.
to marry: happiness and perks
see how someone gets married: family and professional happiness
with a widower or a widow: concerns
adultery: the risk of fire
divorce: the loss of freedom
get married with your wife or husband: prosperity, unexpected financial gain
in the family: quarrels and problems
get married with your sister or brother: danger, troubles, quarrels or financial loss
get married with a maiden, or a bachelor: fame, honors
get married with a widower or a widow: damage, or financial losses
see the celebration: joy and happiness
see the wedding guests dressed in black: grief and mourning
an unhappy marriage: grief, illness or death in the family
destroy someone’s marriage: beware of the fire