Another word to describe this kind of meditation is "noncognitive." This is because it frees one from the traditional limits that are placed upon the mind in relation to surrounding objects. The term, supra-conscious, may also be used when translating this Sanskrit word to English.
This state can occur when the vrittis (waves that disturb our consciousness) cease to exist. This leads to asamprajnata being considered the perfect state in which the inner Self awakens.