The Chant

Things to keep in mind:

- Consuming Lavender = +1 mind exp
- Consuming Spirit Caps = +1 spirit exp
- Consuming Ginger = +1 body exp

- Dialogue Y option = +3 mind exp
- Dialogue A option = +3 spirit exp
- Dialogue B option = +3 body exp

- Picking up and reading documents = +1 mind exp
- Killing gloom creatures = +1 spirit exp
- Killing cultists = +1 body exp

So for this:

- kill cultists and avoid killing gloom creatures
- always answer with B when prompted
- consume ginger / try not to consume lavender and spirit caps
- avoid picking up documents and reels

Honestly, you can do a lot of the things you shouldn't do as long as you prioritize body actions and you'll get the body ending anyway.
You can check your stats anytime in the pause menu.