JRR Tolkien was a devout Catholic. He said on one occasion the Lord of the Rings is "a fundamentally religious and Catholic work; unconsciously so at first, but consciously in the revision." Lord of the Rings, while not an allegory, like C.S. Lewis' Chronicles of Narnia (Tolkien was instrumental in Lewis' conversion from atheism to Christianity, by the way) is simply meant to make us feel Catholic.
The hobbits are innocent. Only Frodo, who is celibate, can carry the ring. He is assisted by the Lady Galadriel and other strong women who are inspired, in Tolkien's mind, by the Blessed Mother. (Tolkien had a great devotion to the Virgin Mary—he had part of the Litany of Loreto memorized and even translated it into his created language.) And Frodo is fed on his journey by lembas, the special elven bread that does not have much taste but is sustaining. Yes, the Eucharist!
Tolkien had a great love for the Eucharist. A priest, Fr. Francis Morgan, took care of JRR and his brother after they orphaned at an early age. JRR served Mass and participated in the 40 Hours Devotion, which involves adoration of the Blessed Sacrament. And, towards the end of his life, Tolkien wrote this to his son Christopher:
Out of the darkness of my life, so much frustrated, I put before you the one great thing to love on earth: the Blessed Sacrament ... There you will find romance, glory, honour, fidelity, and the true way of all your loves upon earth ... which every man's heart desires.
Not just Christopher, but Tolkien's oldest son, John, took to himself his father's love of the Eucharist. John became a Catholic priest and celebrated daily that which directed JRR's life and was the guiding light for middle earth.