The soul is the most plausible solution to the problem of identity. Turns out Catholicism has believed in a soul from the beginning, because the predecessor of Catholicism (Second Temple Levantine and Diasporan Judaism) was fertile soil for the idea. The New Testament alternates between a tri-partite and a bi-partite anthropology, although one verse suggests even a four-part model isn't impossible, heart, mind, soul, etc. Catholicism teaches it's bi-partite; body-and-soul, together, is the whole person.
Hinduism believes the soul is the whole person. That's why Hinduism believes in reincarnation, it's what reincarnation logically requires in order to have any initial plausibility. As a result, Hinduism doesn't consider morality to be as urgent as Catholicism does, because Hinduism believes that we're just on an endless treadmill of reincarnation, and if we really want to get off of it (which is fine but not obligatory), then we have to perfect our soul, because it's the imperfections in our soul, which shows itself in the moral imperfections of the body, which are the seeds of karma. We need to get rid of that, to perfect the soul, and get off the treadmill. But there's no urgency to do it. There's endless time to do it. Whenever we get around to it is fine. Never is fine too.
Catholicism believes in the soul, and in the Resurrection. Catholicism believes our soul and body are one, like two sides of the same coin, except even more intimately integrated than a coin's two sides are. Our soul projects on our body, and our body [reveals] something about our soul. What our body does indicates what's on our mind, under the Catholic model of anthropology, but under Hinduism, our soul needn't have anything to do with our body at all, it can be considered 100% separate and independent even, but this is only possible under Catholicism in the case of physical mental defect and injury. In such a case then the soul is very separated from the body, but apart from that exception, we believe the soul and the body are intimately united, the one does and is, what the other wants, and vice versa. It's a two-way street, a give-and-take. I scratch your back, you scratch mine. Cooperation.