Melody has a certain way that it projects back to you. It triggers certain nerves in your body and certain instincts that normally wouldn't be triggered by a normal voice.
Food and fire, protection and companionship, were some of the things he received from the god. In return, he guarded the god's property, defended his body, worked for him, and obeyed him.
And although our bodies are bounded with skin, and we can differentiate between outside and inside, they cannot exist except in a certain kind of natural environment.
There are hundreds of thousands of microbes surrounding us, but they cannot harm us unless we become weak, until the body is ready and predisposed to receive them.
Half the sum of attraction, on either side, might have been enough, for he had nothing to do, and she had hardly any body to love." (of Anne Elliot and Captain Wentworth, Persuasion)