Genesis 5:1 Kabbalah

זֶ֣ה סֵ֔פֶר תּוֹלְדֹ֖ת אָדָ֑ם בְּי֗וֹם בְּרֹ֤א אֱלֹהִים֙ אָדָ֔ם בִּדְמ֥וּת אֱלֹהִ֖ים עָשָׂ֥ה אֹתֽוֹ׃

This is the book of the generations of Adam. In the day that God created man, in the likeness of God made He him;

Read kabbalistic (mystical) interpretation of Genesis 5:1: and classical mystical sources.