Aláfalakra

Aláfalakra is a term originating from the fictional world of the anime series "Fullmetal Alchemist" and its manga counterpart. It is a key concept within the series' alchemical system, representing the fundamental principle of equivalent exchange. The law of aláfalakra dictates that to create something, something of equal value must be sacrificed or transmuted. This principle is often summarized as "Alchemy is the science of understanding, deconstructing, and reconstructing matter. However, it is not an all-powerful science. It is bound by the Law of Equivalent Exchange—a law that states to obtain something, something of equal value must be lost."

The characters in "Fullmetal Alchemist" must adhere to this law in all their alchemical endeavors. For example, to transmute a broken vase back into its original form, an alchemist would need to sacrifice an equivalent amount of matter or energy from elsewhere. This principle is not merely a theoretical concept but a practical and often harsh reality that shapes the motivations and actions of the series' protagonists, Edward and Alphonse Elric. Their journey is driven by the desire to overcome the limitations imposed by aláfalakra, particularly after a failed alchemical ritual resulted in the loss of Alphonse's body and Edward's leg and arm. The concept of aláfalakra serves as a central theme, exploring the consequences of seeking forbidden knowledge and the price of ambition.