In Hinduism, we have so many mantras for the many gods, the common man is completely bewildered. They are in Sanskrit, most are complex and hard to pronounce; we can only guess their meaning, or look for some trustworthy translations. Sri Purandara Dasa offers solace for us poor souls in this song. We do not need complex mantras for prayer. The name "Rama" - calling for Sri Rama - chanted with bhakthi (devotion) is all we need in this world.
Sri Hari's (Narayana) most kind and benevolent incarnation is as Lord Sri Rama. Remembering and chanting his simple name is the medicine for all the evils in this world. Lord Shiva indicated as much to Parvati as said in the puranas "sahasra naama tat tulyam Rama nama varanane" (the name of Lord Rama has the weight of- is equivalent to- the thousand names of Lord Vishnu in Vishnu sahasra nama).
There are many versions of this song on Youtube. A beautiful rendering of the song by Sri Vidya Bhusana is below. Note that there are slight variations in the various versions of the song online. (This is true of almost every song).
Rama mantrava = the (holy) mantra of Rama's name, japiso = do japa of (i.e. chant in complete devotion), hey manuja = hey man (or woman) "Manuja" refers to "one born of Manu", a human being
Meaning: Hello my fellow man (woman), chant the mantra (name) of Rama with devotion!
Aa mantra ee mantra necchhi nee kedabeda
Somashekhara thanna satige pelida mantra
Aa = that, mantra, ee = this, mantra, nechhi = believe, nee = you, kedabeda = don't be fooled
Somashekhara = Lord Shiva, thanna satige = to his wife, pelida = told, mantra
Meaning: Do not be fooled by this or that mantra. Follow the (Rama) mantra which was recommended by Lord Shiva Himself to his wife (Parvati).
Kulahinanaadaru koogi heLuva mantra,
Jalajapani nithya japisuva mantra,
Kalusha parvatakidu kulisha vaagiha mantra,
Sulabhadindali moksha sooregombuva mantra
Snana mounangaLige sadhanada mantra,
JnanigaLu manadi dhyanipa mantra,
HeenaguNangaLa hingisuva mantra,
Yenembe VibhishaNage pattakattida mantra
Sakala vendangaLige saaravenipa mantra,
Mukuthi margake ide moola mantra,
Bhakuthi rasake batte omme thoruva mantra,
Sukhanidhi Parandara Vittalana maha mantra
