Excerpt from the description:
It is a calligraphic work of the Heart Sutra (also known as 'the perfection of Wisdom"), presented in the form of a large-scale wood inscription display.
The "Wisdom Path" consists of 38 columns in total, planted in a figure-of-eight configuration that symbolises infinity.
The column located at the highest point of the hill is left blank to suggest the concept of "emptiness".
I don't understand the words on the columns though.