The stars can influence a lot of our aesthetic choices and approaches to life, with everything from our favorite drinks to our self-care routines being fair game for analysis. Therefore, it's not too much of a stretch to assume astrology can influence the people we are most drawn to as well.
Indeed, it usually means something if someone you're close to has the same zodiac sign as you. The way you vibe will be on a whole different plane — for better for or worse. Similar energies can have strong attractions and repulsions, depending on your attitude toward those you can ~twin~ with. And being the same sun sign as someone is definitely the most similar energy you can have, with 12 to choose from!
But if you're a little creeped out at realizing how many people out there with your birthday can be just like you, remember that sometimes you may not be too similar due to other differences in your chart. There can be more clarity to be had if you check out your full natal chart, where you'll find you and your BFF probably have different moon, Venus, and/or Mars signs.
But at your core, a similar sun sign is going to be a shared direction that you're headed on your spiritual journey. If you're close to someone with the same sun sign, it has all kinds of implications for your relationship, some of which you'll probably recognize below.