Holst had fragile health. As a child, he had asthma, "which often forced him to bed even after the simple act of climbing stairs." Frequently, he was unable to hold a regular pen due to neuritis.[2] He died at age 59.
Holst had many interests. He read Hindu epics and learned how to read Sanskrit. In addition, he believed in Dharma, an important concept in Hindu philosophy. Holst studied astronomy and astrology, and he even knew how to cast horoscopes. He read widely.[2]
Holst's most famous work of all is The Planets (1918). This is a suite of seven movements for orchestra, each about a different planet (the Earth is not included, and Pluto had not yet been discovered). The music does not really describe the planets or the Roman gods: instead, it was inspired by astrological symbols.[3]