Passion

Merriam Webster - a strong liking or desire for or devotion to some activity, object, or concept.

Wiki -Passion is a term applied to a very strong feeling about a person or thing. Passion is an intense emotion compelling feeling, enthusiasm, or desire for something.

The term is also often applied to a lively or eager interest in or admiration for a proposal, cause, or activity;– to a feeling of unusual excitement, enthusiasm or compelling emotion, a positive affinity, towards a subject.