Question: If a family is a combination of two opposites, then in order to create a good family would you need to find someone opposite to you in order to achieve better connection?
Answer: No, not necessarily. It depends on the level we are talking about.
If we are talking about the human, that is, animalistic, bodily level, then there is no need for improvisation. On the contrary, there should be similarity, and the closer, the better.
But if we are talking about development that cannot exist at the animalistic (bodily) level, then, of course, the oppositeness is needed.
From the point of view of Kabbalah, if people want to unite between themselves in a family, they should be as similar as possible to each other in their way of life, language, and everything that is possible.
Question: If we are talking about the family as a nation or all of humanity, then we must be different?
Answer: Yes. If we are talking about bringing everyone together, as they say, into one family, then this is the system of Adam HaRishon.
There already exists more pluralism and mutual remoteness, but at the same time there is agreement that it is necessary to unite over all problems and disagreements as much as the society raises itself.
From KabTV’s “Fundamentals of Kabbalah,” 1/1/19