General use:
* The immersion of the statue in the water created a shimmering effect.
* The immersion of the book in the world of medieval France was so complete that I felt like I was transported there.
* The immersion of the new employee into the company culture was a priority for the HR department.
Using it with language learning:
* Through total immersion in the Spanish language, she was able to achieve fluency in just six months.
* The language school offered a program of complete immersion, where students only spoke the target language.
* He had a unique opportunity for language immersion by living with a host family in a foreign country.
In a more abstract context:
* The immersion in nature brought a sense of peace and tranquility.
* Her immersion in the world of art led her to discover a new passion.
* The movie's immersion in the character's psyche was truly groundbreaking.
As you can see, "immersion" can be used in many different contexts to describe the act of being completely surrounded or absorbed by something.