There are five elements. Earth, Water, Fire, Air and Ether.
When you see them as a model for consciousness, Ether is the most refined element and is associated with high states of awareness. When we place a smaller element within the dominant one, it makes the model of the Tattvas a kind of road map we can use for contemplation.
Double Ether is the highest state.
India has supplied a word to describe the supreme state that lies beyond all thought: satchitananda. Existence, Consciousness and Bliss.
In this state there is no observer. We are completely at one with all things in all dimensions. In fact there is no longer the notion of “we”. There is no description possible that the mind can grasp. This is another state entirely and is said to be the goal of all spiritual practices.