The ideas behind the asana relate to the 7 cakra or soul centres.
These have been described from the insight of yoga master Heinz Grill,
and offer a new step on the yoga path.
For now the yoga aim of seeking connection to a meaningful part of oneself, can be met by learning to the express these ideas through the body.
These ideas are be briefly summarised below, and can be read in more detail in his book the Soul Dimension of Yoga by Heinz Grill.