“וַיִּבְרָא אֱלֹהִים אֶת-הָאָדָם בְּצַלְמוֹ, בְּצֶלֶם אֱלֹהִים בָּרָא אֹתוֹ: זָכָר וּנְקֵבָה, בָּרָא אֹתָם”
“God created man in His own image, in the image of God He created him; male and female He created them.”
God created man in his own image, one unit of male and female. The ‘image’ is the image of the Tree of Life, meaning that the created man is like a miniscule version of the same system created for the entire universe.
The Endless Light didn’t have the aspect of separation in his essence so his first creation was one but with two sides that will be separated in a different process that was done on the second day, which was the day of separation and the creation of the Left Column.
“וַיֹּאמֶר יְהוָה אֱלֹהִים, לֹא-טוֹב הֱיוֹת הָאָדָם לְבַדּוֹ; אֶעֱשֶׂה-לּוֹ עֵזֶר, כְּנֶגְדּוֹ”
“Then YHVH God said, “It is not good for the man to be alone; I will make him a helper against him.””
When Adam was created he was attached to Eve back to back. Adam was alone because he couldn’t unify with his female counterpart at the level of Yessod. God ‘made him a helper against him (in front of him)’, meaning he separated the female from his back and brought her in front of him. Now they can have unification and create life like the Tree of Life. The upper unification of Father (Chokmah, Right) and Mother (Binah, Left), brings life to the world.
The Zohar explains that when God separated the female from the man he made her like a bride. Later they had unification and the Zohar revealed that the Two, Adam and Eve, elevated themselves with the unification and came down seven. Cain and his twin soul mate, Able and his two soulmates, together 5 and with Adam and Eve they were seven.