Mani sir,
who is the lyricist for 'maadha un kovil'. This song really rends your heart when Janaki 'thaayendru unnaith thaan piLLaikku kaattinEn'. There are not that many songs in which people are emotionally/personally involved with Divine figures (somebody post if they know better, this is an interesting cultural phenomenon). The only other song that comes to my mind is KVM's gangai karai thOttam ..though less serious, but equally moving considering the helplessness of a lovestruck woman with Lord Krishna.