Greetings everyone!
I have been studing the teachings of Eckankar for a while now. I am fortunate to have had Spiritual Experiences in the form of light and sound.
Are there any members of Eckankar here? I can answer questions as best I can… 
Mike
Hello Mahant,
The sounds that you heared are the sounds of universe.
These sounds are attached with a specific level of viveration.
The ultimate sound that you can hear after a long practice is Aum(om?).
Thank you.