The 7th energy center is also called the crown or crown chakra. It is your gateway to stillness and universal connectedness.
As you may already know, the chakra teachings originate from the ancient Indian healing tradition and therefore each of the 7 energy centers also has a Sanskrit name. In Sanskrit, the 7th chakra is called "Sahasrara".
The design of all seven chakra symbols is similar: on the outside are the open lotus blossoms and elements from sacred geometry. The 1000-petalled lotus flower is a symbol of the Sahasrara chakra symbol and the healing colors of the crown chakra are violet, gold and white.
The powerful chakmonia affirmation for the crown of the head chakra is: "I=Universe=I" and is the pictorial expression of universal connectedness. The physical separation dissolves and you realize that everything is connected and that you are part of the big picture.