Mabye these mounds are like a array of "force amplifirers" lke the crystal on Mimbian, also known as Circarpous V. This may be how Killiks are force sensitive. And one more thing check out the discussion in the Blue Shadow Virus. I put how I believe the virus is linked to the Muur Talisman and how I think Karness Muur ma... Never mind, it's a SECRET!!! Go Find Out!!