ཤེས་རབ་ཀྱི་ཕ་རོལ་ཏུ་ཕྱིན་པ་ཚད་མྱེད་དོ། །
Since space is immeasurable, the fire element is immeasurable, and since the fire element is immeasurable, the perfection of wisdom is immeasurable.
Emptiness, Perfection of Wisdom, Boundlessness