Question: Why do I need a group and unification?
Answer: The Creator cannot be felt other than inside the desire He created which becomes similar to Him in spite of its initial quality. What we call the Creator is not Him (Atzmuto – His essence), but our perception of Him through our similarity to Him.
Question cont.: How do I know that my perception of Him and He are the same thing?
Answer: We can feel only 1) matter and 2) the form of matter, but not 3) form outside of matter and 4) essence. Therefore, we can only talk about what is clothed in us and felt by us according to the principle, “I will know You from Your actions [upon me].”
From the 3rd part of the Daily Kabbalah Lesson 9/20/10, Talmud Eser Sefirot