Do yoga on Keith argues that from the Rgveda onwards manas is commonly used to indicate the means of knowledge of external events en route from the senses.22 In the Brahmanas and early Upanisads it is one of the senses or faculties (pranas) which, in the Satapatha Brahmana, are called the pranas in the head or the pranas of Prajapati. They are eye (caksus), ear (srotra), breath (prana), voice (vac) and mind (manas). BAU 2.1.17 and a number of accounts of a competition between the faculties in the BAU, the Chandogya, the Kausitaki and Prasna Upanisads all give the same list. From the Katha Upanisad onwards most Upanisadic texts abandon the term prana to refer to these faculties and adopt a scheme, commonly associated with the Samkhya school, of indriyas, in which manas becomes an evolute of ahamkara, alongside the buddhmdriyas (eye, ear, nose, tongue and skin) and karmendriyas (hands, feet, speech, anus and genitals). Do yoga 2016.
Do yoga Yoga Poses 8.