For more clues to meaning, pay attention to the characteristics of the decorations, such as, color (perhaps representing a certain holiday or team), texture (lace representing femininity), and type (china representing a formal occasion).
Also pay attention to the motivation behind the decorations.
For example, they may represent a desire to enhance something, communicate a message, cheer someone up, show affection, or acknowledge a person or milestone.
See also: Jewelry; Party; Special Occasion; Holiday; Wedding; Festival or Carnival; Creativity; Award; Furniture; House