Elisabeth Kübler-Ross dying led to the book "On Death and Dying" in 1969. In it, she proposed the now famous Five Stages of Grief as a pattern of adjustment: denial, anger, bargaining, depression, and acceptance. In general, individuals experience most of these stages when faced with their imminent death. The five stages have since been adopted by many as applying to the survivors of a loved one's death, as well. Kübler-Ross encouraged the hospice care movement, believing that euthanasia prevents people from completing their 'unfinished business'. In 1977 she persuaded her husband to buy forty acres of land in Escondido, California, near
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