Kabbalah do Rodzaju 1:24

Come and see: all spirits in the world contain both male and female, and when they come out, they come out [both] male and female, and after they spread out in their ways, if a person is worthy, after, they join as one. And this is 'one's partner' and they join as a couple (other versions: in variation) on in all, spirit and body. As it is written: 'let the land bring out living souls according to their type' (Gen. 1:24). What is 'according to their type'? This is the spirit of a human that goes out and pairs up with what is similar to it.