According to Powell, Saturn is "a truly karmic planet that's one of the greatest teachers in our birth charts." This planet governs stability and structure, so it's only natural that your Saturn placements should be compatible in order to establish a long-lasting relationship. In this case, however, having the same Saturn sign (conjunction) is not the best. "When looking for long-term compatibility, it's important for couples to share some type of supportive aspect," she said. "A Saturn sign conjunction can increase fear and restriction, so it's important to have your charts analyzed by a professional. But if you have strong Saturn contacts between your birth charts, it's likely that your relationship is karmic and here for the long haul."