Words that don’t mean much in the first place can’t be made to mean more by being arranged with the use of poetic devices. The words can pose as something that means more, but they don’t have any more substance to them. Empty words remain empty words even with a layer of paint on them.
Poetic devices can certainly enhance meaning that is present and can also call upon systems beyond the literal, such as sensory, symbolic, and intuitive, to add layers and dimensions of meaning, to underscore or enhance meaning, and to extend meaning. They can turn the author’s information about an experience or description of an experience into an evocation of the experience in the mind and heart of the reader.