The Catechism in Questions & Answers

531. Is there a life after death?

Yes. Man is both a physical being and a spiritual being. He is an entity consisting of body, soul, and spirit.
The human body is mortal and is thus transitory. It is taken from the earth and will return to the earth (cf. Genesis 3: 19). Soul and spirit, by contrast, live on after physical death, and are thus immortal. The personhood of a human being—that is, his essence, that which comprises him, and that which he has experienced, felt, believed, and thought—thus continues to exist after physical death.

“For God created man to be immortal, and made him to be an image of his own eternity.”
Wisdom of Solomon 2: 23