I hope not to be too naive in asking: Can anyone recommend primary or secondary sources regarding Indian "lamentations"?  Does such a genre exist?  etc.?  I have been reading Song Dynasty Neo-Confucian writers like Zhu Xi, who ridicules contemporary behaviors and customs as degradations of ancient practices, and I began to wonder about similar lamentations from India.  My question doesn't refer so much to prophecies regarding the cycle of ages (satya--kaliyuga) and their degradation into the present.  I'm wondering about potential firsthand observations that compare present with past and lament contemporary practices.  I'm clueless, and any helpful suggestions would be appreciated.

Thank you!

Charlie