Ekatma Vivekam – the kalivenba version of Ekatma Panchakam
Sri Ramana composed many of his Tamil works — such as Ulladu Narpadu, Ekatma Panchakam, Devikalottara – Jnanachara-Vichara-Padalam, Atma Sakshatkara Prakaranam, Bhagavad Gita Saram and Atma Bodham — in a four-line poetic metre called venba, which contains four feet in each of the first three lines and three feet in the fourth line.
Since devotees used to do regular parayana or recitation of his works in his presence, he converted each of the six works mentioned above (that is, each of his works in venba metre except Sri Arunachala Pancharatnam) into a single verse in kalivenba metre by lengthening the third foot of the fourth line of each verse and adding a fourth foot to it, thereby linking it to the next verse and making it easy for devotees to remember the continuity while reciting. Since the one-and-a-half feet that he thus added to the fourth line of each verse may contain one or more words, which are usually called the ‘link words’, they not only facilitate recitation but also enrich the meaning of either the preceding or the following verse.
Since Sri Ramana formed the kalivenba version of உள்ளது நாற்பது (Ulladu Narpadu) by linking the forty-two verses into a single verse, the term நாற்பது (narpadu) or ‘forty [verses]’ is not appropriate for it, so he renamed it உபதேசக் கலிவெண்பா (Upadesa Kalivenba). Likewise, since he formed the kalivenba version of ஏகான்ம பஞ்சகம் (Ekanma Panchakam) by linking the five verses into a single verse, the term பஞ்சகம் (panchakam) or ‘set of five [verses]’ is not appropriate for it, so he renamed it ஏகான்ம விவேகம் (Ekanma Vivekam).