Because a sonnet is a love poem as such, therefore they speak this way to convey a sense of passion and also lust, it is effective as it is a love poem as i mentioned, therefore it is self explanatory
I think the mood is mystic, excitement, and hope.
Authorization, defines what a person accessing the data can do with that data.
Worst is superlative. Superlative means the highest form of something - saddest, coldest, worst, etc.