There is an interesting correlation here with some ancient wisdom: Most schools of Indian philosophy borrow the term `guna` -- literally "quality" but in conte

There is an interesting correlation here with some ancient wisdom: Most schools of Indian philosophy borrow the term `guna` -- literally "quality" but in context[0] meaning "mental texture" to refer to three main states of mind: Sattva: equanimity, poise, contemplativeness, objectivity Rajas: frenzy, agitation, result-orientation Tamas: indolence, lethargy, sloth, sleep It's interesting to note that Brahma Murta[1] falls between 4am-6am and is indicated as the predominance of sattva[2]. The predominance of other gunas may be observed by looking at the nature of activities during other times (6am-6pm = rajas), (6pm - 4am = tamas). Those interested in further reading might consult the Vedanta Treatise[2] by A Parthasarathy. [0] https://en.wikipedia.org/wiki/Gu%E1%B9%87a#Samkhya_school_of_Hinduism https://en.wikipedia.org/wiki/Gu%E1%B9%87a#Samkhya_school_of... [1] https://en.wikipedia.org/wiki/Brahmamuhurtha https://en.wikipedia.org/wiki/Brahmamuhurtha [2] https://www.amazon.com/Vedanta-Treatise-Eternities-Parthasarathy-ebook/dp/B00I8D4ZFM https://www.amazon.com/Vedanta-Treatise-Eternities-Parthasar...