The Torah forbids kelayim—mixing different kinds—because Hashem created each with its own unique purpose and identity. When animals or produce are mixed, their essence is destroyed, but with garments like wool and linen, each material remains distinct, which is why it can be permitted for a mitzvah. On a deeper level, every kind represents spiritual forces above, such as chesed (kindness) and gevurah (strength). If these opposing powers are forced together without a higher purpose, they cancel and destroy one another; but when united in service of Hashem, their differences are not erased but elevated, working in harmony toward one goal. In our physical world, however, each kind resists compromise, so attempts at unity either lead to destruction, like crossbreeding animals or mixing produce, or result in coexistence without peace, like wool and linen in a garment. True peace, therefore, is not about weakening individuality but about each person, with their full strengths and qualities, coming together for a higher purpose—to serve Hashem.

לקו״ש כט-א