A concept within the Hawaiian Huna tradition. Aka is a sticky and elastic substance that, like the Western concept of ectoplasm, can stretch without breaking. In Huna, people are said to have three bodies. Each of these bodies has an etheric or “shadow” body. The shadow body is made of Aka. Aka threads or cords are the means by which all energy (mana) and information travel. The more you communicate with someone, the more your Aka threads intertwine.