Health meditation on c. 1450 ce. All could easily be post-Sankara. Nevertheless, there is little by way of content in the Upanisads of the first group to indicate a post-Sankara period of composition. Indeed, there are reasons for thinking that their composition might have taken place in a period immediately following the completion of the Mahabharata. In Mahabharata 12.196 Yudhisthira says to Bhdsma, I wish, O Bharata, to hear of the fruits that silent reciters of sacred mantras acquire (by their practice). Health meditation 2016.