Tanya Chapter 46 part 3. The opportunity to reach beyond the created realm to a realm where only Essence exists

In giving us the Torah, Hashem has given us His very Self and Essence. Torah study is the Divine kiss – fusion so deep, where our essence merges with the Divine Essence. Hashem also embraces us in love by giving us His commandments, which are His limbs so to speak. His love for us is so great, and the fusion between us so complete, this is the reason why we say that Hashem has betrothed us with His commandments, like the fusion of man and wife who merge into one being and become one flesh. How tremendous is the love that Hashem shows us! If we call our attention to His love, we cannot help but love Him rapturously in return.