What was the purpose of Das Ganu's book, the 'Ishavasya-Bhavartha-Bodhini', and what was his method for creating it?

As detailed in Chapter 20, Das Ganu's primary motivation for writing the 'Ishavasya-Bhavartha-Bodhini' was to help people who were ignorant of the Sanskrit language understand the deep meanings of the Ishavasya Upanishad. His method was to create a compiled explanation by translating the scripture into a simpler, more accessible language. He chose to use Ovi verses in the Prakrit language to explain the meaning of each word from the original text. The goal was to elaborate on the Upanishad's meaning for a wider audience, though he encountered difficulty when he realized a literal translation failed to capture the scripture's internal secret.