Subhanahu wa ta'ala is an Arabic phrase that is often used to refer to Allah, who is the supreme being and creator of the universe in Islamic beliefs. It is made up of two parts - "subhanahu" means "glorified is he," and "ta'ala" means "the most high." When Muslims say "subhanahu wa ta'ala" after mentioning Allah's name, they are showing respect and praising Allah for his greatness and power. This phrase helps Muslims remember that Allah is the one who deserves all reverence and honor. It's kind of like saying "wow, you're amazing" to Allah to show our admiration and devotion.