“When there is a tendency to compartmentalize the spiritual and make it resident in a certain type of life only, the spiritual is apt gradually to be lost.”

Source: The Professor at the Breakfast Table (1859), Ch. V.

Woman in the Nineteenth Century (1845)

Source: The Demon-Haunted World: Science as a Candle in the Dark

"Answer #3" at his official website. http://www.chickcorea.com/from_chick.html
Context: I believe that any "awareness" of life is "spiritual" since awareness can only be a quality of the spirit not of the material world or of matter and machines. Only a spiritual being has awareness. But if you mean "spiritual" in the sense of a kind of "celebration of Life", then yes, I write music to celebrate life. I think most artists do, no matter how they themselves describe it. It's the joy of creating. It's a way of life.

Source: One Minute Nonsense (1992), p. 96
("Leela" is more commonly spelled "Lila")

The Ageless Wisdom, An Introduction to Humanity's Spiritual Legacy (1996)

Source: The Spiritual Life (1947), p. 264

10 Keys to a Strong Family (2002)
Context: Religious belief, trust, a sense of connection to the universe — no matter what you call it, there is a spiritual component to strong families. They see their lives as imbued with purpose, reflected in the things they do for one another and the community. Small problems provide a chance to grow; large ones are a lesson in courage. A mother whose son died of a brain tumor bravely returned to the hospital where he had died in order to set up a research fund. When she saw the parents of children who currently were suffering, she told her son’s doctor: "If any research you do produces any advance, my son’s passing won’t have been totally without purpose." It takes a certain type of spiritual grace to see beyond one’s own misery to the needs of others. Strong families try to live so they can look outward — and inward — every single day.

Anthroposophical Leading Thoughts (1924)