Here's a breakdown:
* mandala: This refers to a sacred geometric symbol, often used in Hinduism, Buddhism, and other religions. It represents the universe and its cyclical nature.
* thunai: This means "protection" or "assistance."
* vattachiyar: This is a respectful form of address, similar to "you" or "your esteemed self."
Therefore, the entire phrase is a blessing seeking protection and guidance from the power of the mandala.