http://www.soulandspiritmagazine.com/6-chakras-didnt-know/
Causal Chakra
https://www.facebook.com/Angels.DianaCooper/posts/the-expanded-causal-chakrathe-moon-white-causal-chakra-is-located-just-behind-th/10154522605617842/
https://www.insightstate.com/spirituality/causal-chakra-past-life-chakra/
https://reikirays.com/28180/the-higher-chakras/
http://www.motherearthreiki.com/2016/11/19/causal-chakra-essence/