On many of Shivji's Pictures, The ॐ is often shown in His hand, What does this mean? Simply, that He is the holder of Divine wisdom, and He wishes to transmit it to all of us, as a great blessing

Have you noticed, On many of Shivji's Pictures, The ॐ is often shown in His hand, What does this mean? 

Simply, that He is the holder of Divine wisdom, and He wishes to transmit it to all of us, as a great blessing. Aum Namah Shivaye.