The sound of hu I hear it all day long without concentrating hard. I sit back and relax and I hear it instantly. Could I be somone important but in a different life?
No, it just means you're a slave to one of the Guardians of the Realm of Light. :D
Actually, if you hear it all day long, I'd go to my Doctor and get checked for Tinnitus.
My theory is that we are imprisoned in these flesh bodies, and our souls are the criminals of the Light Realm. Just as when the Sumerian Lords of Life killed Kingu to have a soul with which to create Adapa.
Something along the line of "The Matrix", but then again gnosticism is quite a bit older. :)
According to the correspondence chart in my qigong book....
Spleen. Hoooo (hu). Yellow. Saturn. Center. Late summer.
Hope that helps.