Question: Which singer-songwriter from Northern Ireland released the album Beautiful Vision which has songs based on the spiritual teachings of Alice Bailey?

Context paragraphs:
Cleaning Windows: "Cleaning Windows" is a song written by the Northern Irish singer-songwriter Van Morrison, recorded on his 1982 album "Beautiful Vision".

Jes Bertelsen: Jes Bertelsen (born March 27, 1946), Dr. phil.  in History of Ideas, is a Danish spiritual teacher and author.  Since 1982 he has been the leader of Vækstcenteret (i.e. "The Growth Center"), which he and his wife at the time, Hanne Kizach, founded in Norre-Snede Municipality, Denmark.  His teachings are based on an experiential investigation of the nature of consciousness, using comparative analysis of Eastern and Western spiritual teachings and consciousness practices on a foundation of modern psychological, philosophical and scientific approaches.  He teaches in Danish.  A number of his books have been translated into German.

Radha Soami Satsang Sabha: RadhaSoami Satsang Sabha is the Chief Working Committee Of Radhasoami Satsang Dayalbagh.  The teachings of Radhasoami Faith are based on the spiritual teachings of Shiv Dayal Singh Ji (Huzur Soami Ji Maharaj)

Alice Bailey: Alice Ann Bailey (June 16, 1880 – December 15, 1949) was a writer of more than twenty-four books on theosophical subjects, and was one of the first writers to use the term New Age.  Bailey was born as Alice LaTrobe Bateman, in Manchester, England.  She moved to the United States in 1907, where she spent most of her life as a writer and teacher.

Dweller on the Threshold (song): "Dweller on the Threshold" is a song written by Northern Irish singer-songwriter Van Morrison and first released on his 1982 album, "Beautiful Vision".  It was released as a single on the B-Side in 1982 with the instrumental "Scandinavia" as the "A" tune.  Another release in 1984 had "Dweller on the Threshold" as the A-Side.

Radha Soami Satsang Beas: Radha Soami Satsang Beas (RSSB) is a philosophical organization based on the spiritual teachings of all religions, dedicated to a process of inner development under the guidance of a spiritual teacher.

Great White Brotherhood: The Great White Brotherhood, in belief systems akin to Theosophical and New Age, are said to be supernatural beings of great power who spread spiritual teachings through selected humans.  The members of the Brotherhood may be known as the Masters of the Ancient Wisdom or the Ascended Masters.  The first person to talk about them was Helena Petrovna Blavatsky (Theosophy), and after she and other people claimed to have received messages from them.  These included Aleister Crowley, Alice A. Bailey, Guy Ballard, Geraldine Innocente (The Bridge to Freedom), Elizabeth Clare Prophet and Benjamin Creme.  Machaelle Small Wright has written extensively about the "White Brotherhood" and her communication and work with them.

Vanlose Stairway: "Vanlose Stairway" is a song written by Northern Irish singer-songwriter Van Morrison and included on his 1982 album, "Beautiful Vision".  It has remained a popular concert performance throughout Morrison's career and has become one of his most played songs.

Djwal Khul: Djwal Khul (variously spelled 'Djwhal Khul', 'Djwal Kul', the 'Master D.K.', 'D. K.', or simply 'DK'), is believed by some Theosophists and others to be a Tibetan disciple in the tradition of ancient esoteric spirituality known as The Ageless Wisdom tradition.  The texts describe him as a member of the 'Spiritual Hierarchy', or 'Brotherhood', of Mahatmas, one of the Masters of the Ancient Wisdom, defined as the spiritual guides of mankind and teachers ancient cosmological, metaphysical, and esoteric principles that form the origin of all the world's great philosophies, mythologies and spiritual traditions.  According to Theosophical writings, Djwal Khul is said to work on furthering the spiritual evolution of our planet through the teachings offered in the 24 books by Alice Bailey of Esoteric Teachings published by The Lucis Trust; he is said to have telepathically transmitted the teachings to Bailey and is thus regarded by her followers as the communications director of the Masters of the Ancient Wisdom.

Beautiful Vision: Beautiful Vision is the thirteenth studio album by Northern Irish singer-songwriter Van Morrison, released in February 1982.  It continued Morrison's departure from R&B at the time, instead favoring Celtic folk and American jazz in its music.  As with many of Morrison's recordings, spirituality is a major theme and some of the songs are based on the teachings of Alice Bailey.  Other songs show Morrison's Celtic heritage and reminiscence of his Belfast background.

Supporting paragraphs: Beautiful Vision Alice Bailey
Answer: Van Morrison