This is the 148th most frequent Indonesian word.
paling
"Most" or "the most."
In this sentence, 'paling' is used as a superlative marker to indicate the highest degree of sweetness.
Saya ingin makan buah mangga yang paling manis.
I want to eat the sweetest mango.
Here, 'paling' functions to designate the topmost level of diligence among the students.
Dia adalah siswa yang paling rajin di kelas ini.
He is the most diligent student in this class.
In this instance, 'paling' emphasizes that the beauty of the mountain is ranked at the highest level compared to other places.