Select the most appropriate meaning of the given Idiom:-

Heart and soul 

Full devotion

The most appropriate meaning of the idiom "heart and soul" is full devotion. The idiom comes from the idea that the heart and soul are the two most important parts of a person, and that to give something your heart and soul means to give it your very best. In a figurative sense, to say that you are doing something "with all your heart and soul" means that you are doing it with complete dedication and passion.

The other options are not as accurate descriptions of the meaning of the idiom. Loving someone is not the same as giving something your heart and soul. Feeling blessed is not typically associated with the idiom "heart and soul." Deteriorate rapidly is not typically associated with the idiom "heart and soul."