Christianity, as taught by Jesus, believed in the Holy Spirit, which is an inner voice; within our unconscious psyche. It is part of us.
Animists believe in wide range of outer spirit voices, such as from the many spirits in nature. Animistic is a type of projection, of what is considered, by Christianity, to come from the inside of the person.
A good analogy is art. A good work of art will induce a reaction in the audience. The feeling and reaction is not within the art. The art is more like a trigger, that can induce the internal reactions we feel. The animistic person would assume the feeling starts in the art, and therefore the art is more than just a trigger. They believe they get a contact buzz with the spirit of the art.
In modern marketing, animistic principles are used to endow sales objects with the various spirits of the free market. These spirits help to get the consumer part with their money.
The fancy sports car is marketed; conditioned, as being able to make the young male a sexually desirable object, for attracting females. By himself, he is only Joe, but once inside driving the car, the free market spirit of the car, will change who he is. This is a conditioned spirit, where many people are induce by the Ad campaign, to play along; project the spirit, for it to be effective.
The pet rock was nothing but a rock, that was marketed to be alive like a pet. It came with a certificate of authenticity. This gave it an animistic spirit. This was a fad and all the children of a certain age needed to have one or more. It was a conditioned spirit, by a marketing campaign, which combined with a prestige affect, due to limited supply and high demand.
It was very hard for animistic religions to advance in science, since one was not allowed to closely examine the abode of the projected spirits. You could not reason with the children that the rock was nothing more than an over priced rock. They could not objectively examine it, due to the conditioned projection. Animistic living was not a solid foundation for first world cultures. It is too easy to fabricate with marketing psychology.