Her favorite authors were Oscar Wilde, Lewis Carroll, Hans Christian Andersen, Charles Perrault, the Brothers Grimm, and Selma Lagerlöf, and their work formed the basis of her inspiration to write stories.

[4] She also felt a great fascination for the outdoors and nature, and she often observed and studied insects, trees, flowers, and the climate when she went out to play with her siblings and explore in the vicinity of their home.

[7] Four years later, Zuloaga invited her to an awards ceremony for the writer Francisco Coloane, for his most famous work, El último grumete de la Baquedano [es].

[5] In 1951, she published her poetry collection Como una raíz de agua, and made a cultural trip to Europe, where she met Gabriela Mistral in Naples, Italy, whom she described as having an aura of strong solitude.

Morel was one of the founders of International Board on Books for Young People (IBBY) of Chile, together with writers Lucía Gevert Parada, Marcela Paz, and Maité Allamand, among others.