In 1905 he received the robes of the Jogye Order of monks and in 1908 he went to Japan and visited several temples to study Buddhism and Eastern philosophy for six months.

These works revolve around the ideas of equality and freedom and helped inspire the tendencies toward passive resistance and non-violence in the Korean independence movement.

In this work, the author promulgated the principle of equality, self-discovery, the potential for Buddhism for safeguarding the world, and progress.

In the following year, he played an important role in the 3.1 Independence movement with Chae Lin, for which he was later imprisoned and served a three-year sentence.

During his imprisonment, Han composed "Reasons for Korean Independence" (Joseondoglib-i-yuseo) as a response to the official investigation into his political engagement.

The poems published in Han's Nim-ui Chimmuk had been written at Baekdam Temple in the previous year.