"Thank you from the bottom of my kind heart."
Let's break it down:
* Mahalo: Thank you
* Piha: From the bottom (literally, "from the inside")
* No: Of
* Kou: Your
* Puuwai: Heart
* Oluolu: Kind, gentle, pleasant
This phrase expresses deep gratitude and appreciation, acknowledging the kindness and generosity of the recipient. It conveys a heartfelt sentiment that goes beyond a simple "thank you."