What is the secret behind Allah Almighty naming Himself "Allah"?

The name "Allah" is the name of the sacred Divine Essence, and it is considered the most virtuous, comprehensive, and greatest of the Beautiful Names of Allah. This name signifies the Essence that encompasses all attributes of divinity, and it is exclusive to Allah Almighty; it is not applied to anyone else, neither literally nor metaphorically. Furthermore, while the meanings of other Beautiful Names can, in some way, be attributed to a servant, the meaning of the name "Allah" is exclusive to Him Almighty, and no participation in it can be conceived. Therefore, all other names are described as being among the names of Allah, but the reverse is not said, because "Allah" is more indicative of the core of divine meanings and more specific to them.