Metaphysical

Mathematics has not a foot to stand upon which is not purely metaphysical.

Sami went to a metaphysical store.

"Metaphysical Meditations" is a work by Descartes.

Parmenides wrote about 470 B. C. He is represented as a serious and influential man, with a high moral character. He exercised strong influence upon such philosophers as Plato and Democritus, and was a political power in the city of Elea, of which he was a native. He was not a stranger to the Pythagoreans. The large fragment of his poem is the most ancient monument extant of metaphysical speculation among the Greeks.

I was a "Roman Cat" as a child in the Philippines. I was Roman Catholic, at least, nominally, as many Filipinos were. For me, the religion was decorative. I knew a few memorized prayers. I rarely did the rosary. But I had several rosaries, and one was glow-in-the-dark white-green plastic! My school, La Salle Green Hills, was a large private Roman Catholic school. I had my first communion at my school. I attended my cousin Jojo's confirmation in a UFO-shaped church in the University of the Philippines. My Roman Catholicism wasn't deep metaphysical and philosophical like my Animism-Buddhism in my current years, but Animism-Buddhism subtly attracted me since childhood. I've seen Buddha statues and Nature has fascinated me since a child.

Felix believed in a lot of metaphysical things.

In Buddhism, one tests ideas for oneself, unlike other religions wherein leaders oblige adherents to believe everything the religion tells them. There are Buddhist ideas like The Four Noble Truths, rebirth cycles, special cosmology, metaphysical concepts, et cetera which one tests for oneself whether they are true to oneself.

It is easy to become a Theosophist. Any person of average intellectual capacities, and a leaning toward the metaphysical; of pure, unselfish life, who finds more joy in helping his neighbor than in receiving help himself; one who is ever ready to sacrifice his own pleasures for the sake of other people; and who loves Truth, Goodness, and Wisdom for their own sake, not for the benefit they may confer—is a Theosophist.

Buddhism is a non-theistic religion, since it has no gods but metaphysical beliefs.

It's a metaphysical abstraction.