For me this was an easy concept. Going back over a decade. I had fallen in love with a woman, while still in love with my ex (even though I hated her)... I believed in their own ways they were both my soul mates. At that time they were. So... I hit the internet.
Anam Cara stuck home for me. Soul Friends. The idea that multiple people can have impacts on your soul. With the idea the a few of them are mates too. I have used it ever since and it has helped. I am at a point again where I believe I am with my Anam Cara... my soul is in a very happy place...