to enrich
An infinitive is the basic form of the verb without a subject. When it is used in a sentence, it is preceded by "to". The correct answer is the one with a verb. To test it out just ask yourself if you can use it with the subject I after dropping "to". I enrich? Yes! Check, it's right. You can't say I the delight or I Tuesday mornings. The rest of the options are prepositional phrases because they start with the preposition to and end in a noun (person, place, thing, or idea).
Rainer Maria Rilke's referred to his poems as 'mystical' poems. This is because his literary pieces contains haunting images, with the combined theme of beauty and suffering, as well as life and death. Rilke's themes in his works is the exact opposite of Shakespeare's. Shakespeare used intellectual symbols rather than physical, while Rilke gives emphasis on physical rather than intellectual symbols.
