Berg argues that negativity—often referred to as the "Evil Eye" ( Ayin Hara )—enters through the desire to receive. By wearing the string on the left wrist, it acts as a filter or a "gatekeeper," blocking negative energy before it can enter the body and affect the soul. It is a tool to restrict the ego’s desire to receive for the self alone, encouraging the user to transform into a sharing being.
Yehuda Berg is a prominent figure in the Kabbalah Centre, an organization dedicated to making the esoteric teachings of Kabbalah accessible to the general public, regardless of their religious background. Alongside his brother Michael Berg, Yehuda has been instrumental in translating complex Aramaic concepts into practical, 21st-century advice. EL LIBRO DEL HILO ROJO YEHUDA BERG..PDF