SR,
A valid point about the decline of religious compositions in western music. Even for the dwindling number of church goers, there is plenty of old music to go around for many years to come.
In India today, while modern art has become acceptable, we are still not ready for secular songs in CM, it seems. BhArati's verses, SuddhAnanda bhArati's and vEdanAyakam piLLAi's songs were and are often heard without the rasikAs being conscious that they are secular in nature. Of course, such compositions have to have quality. Otherwise, they may not survive.
Above all, we should not have an unreasonable fear that secular songs would oust the great compositions which are religious in nature.
An excellent composition might sound as good as a tyAgarAjA kriti (with say, the philosophical enquiry of a cakkani rAja forgetting the caraNAm where rAmA is addressed).
If that is how a song comes to a composer whether he or she is a bhaktA or not, so be it.
An added asset about such a song--even a person who worships a different god might want to sing it if the song is appealing to his sensibilities...
