This hymn has six shlokas praising the glory of the lord Shiva and his six syllable mantra. The six syllable mantra is the famous five syllable mantra preceded by Om The Vedas say that the mantra is the body of the deity. By worshipping the deity through the mantra you attain the deity. There is no difference between the mantra and the deity worshipped through it. The starting letters of each shloka when arranged horizontally the mantra Om namah shivaya is revealed. Each shloka has many occurrences of the syllable which is praised through the shloka.