You aren't necessarily overtly similar. Instead, your strength as a couple is an innate sense of balance and timing that forges a wonderful bond between you. You help each other find yourselves, so to speak; through loving each other, you learn to love and know yourselves.
Your individual purposes in life could become more clear through the course of this relationship than they've ever been to you before, and you support each other as best friends would in finding your way along your paths. You feel calm and open when you're together, ready to take what comes and deal with it as a team. A wonderful effect of this influence is that you treat each other with respect at times when other couples -- or even you yourself, involved with someone else -- would fly off the handle. When problems come up between you, you are really good at staying calm and choosing the right moment to talk things out and deal with them together. So do something great with this influence! You both want to expand your minds and your horizons when you're together, and that's something you're able to do as a couple. Learning is highlighted for you, and the optimism you bring to each other's lives inspires self-confidence in both of you. You're protective and supportive of each other, and you really help each other grow as individuals.