Qi that presages most of what is given greater detail by the Neo-Confucians: The "Huangdi Neijing" "(""The Yellow Emperor's Classic of Medicine", circa 2nd century BCE) is historically credited with first establishing the pathways, called meridians, through which qi circulates in the human body. In traditional Chinese medicine, symptoms of various illnesses are believed to be either the product of disrupted, blocked, and unbalanced "qi" movement through meridians or deficiencies and imbalances of qi in the "Zang Fu" organs. Traditional Chinese medicine often seeks to relieve these imbalances by adjusting the circulation of "qi" using a variety of techniques including herbology,
What Love Is Made Of three minutes and fifty-five seconds (3:55), "What Love Is Made Of" is an uptempo dance and house track that has been described as "rave-y" and "trance-y". Its instrumentation contains the sounds of pianos and synthesizers. Jordan Sargent of "Spin" observed that it continued the musical style first introduced in Katy's 2012 extended play (EP), "Danger EP", which was "straight-forward house". Idolator's Sam Lansky compared her performance in the song to recording artist Siobhán Donaghy. Critical response to "What Love Is Made Of" was generally positive: most critics noted Katy's vocal performance and commended its sound. Siân Rowe from "NME" was