Marriage lines appear right below the pinky finger and above the heart line. The heart line is the line that indicates affection or how well someone will do in love. The marriage lines right above it can indicate when someone will marry, how many times someone will marry and whether or not there will be separation or divorce.
Marriage lines that are straight and long indicate a happy marriage and long relationship. Someone with numerous marriage lines may have more than one marriage or have multiple non-serious relationships before getting married.
Other important lines on the palm include the life line and head line. These lines supposedly measure changes in health and intelligence.