Parameshvara (IAST: Parameśvara, Sanskrit: परमेश्वर) is an epithet used in Hindu literature. The term usually indicates the Supreme Being and Supreme Reality in Hinduism. Vaishnavas consider Vishnu and his avatars such as Rama and Krishna as Parameshvara, while Shaivas consider Shiva as Parameshvara.[1][2][3][4][5] Parameshvara is the ultimate and highest reality that eternally pervades all matter for Hindus.[6] He is regarded by devotees to be totality itself, controlling the triple forces of creation, preservation, and destruction.[7]
^George Christopher Molesworth Birdwood (1971). The Industrial Arts of India. Chapman & Hall. p. 56. ISBN9780900636011. Vishnu is the second person in the tri-murti or triple form, and personifies the pre-serving power of nature. His followers identify him with Nara- yana [Plate C, Fig.1], and Parameswara, and represent him as the progenitor of Siva and Brahma.