Artist: Ünal Ünalan
The expression 'Ya' is an invocation, a call.
The Most Exalted Name Allah (ism-i celal) is considered "the Greatest Name" (ism-i azam) because it encompasses all the meanings of the Beautiful Names (Asma al-Husna). This name is exclusive to Allah's essence and cannot be given as a name to any other being.
Celle Celalühü is an expression derived from the verb 'celle', meaning "to be great and exalted", which comes from the same root as 'celal' (greatness, majesty, exaltation). When the word Allah or one of Allah's names is mentioned, this is an expression of respect meaning "whose majesty is exalted and great".