Akashic is derived from the Sanskrit word "Akasa" that refers to an indeterminate essence such as space or ether. Akashic Stream is the etheric depository of all collective thought. All experience and knowledge is deposited in a special place that is akin to a library of the universe.
Accessing information from the Akashic Stream requires attunement to special vibrations of both the depository and the information. This information is not available to all souls. When a soul is qualified to obtain further information from the akashic records, they will obtain it, but not before.