…Dreaming of decorating a place with bright-hued flowers for some festive occasion, is significant of favorable turns in business, and, to the young, of continued rounds of social pleasures and fruitful study. To see the graves or caskets of the dead decorated with white flowers, is unfavorable to pleasure and worldly pursuits. To be decorating, or see others decorate for some heroic action, foretells that you will be worthy, but that few will recognize your ability….
Dream dictionary: Decorate dream meanings
If you are decorating something in a dream, then such dream shows your wish to cover something up. Perhaps there are things you dont want to show or reveal. Alternatively, the dream about decorating could indicate the aspects of beauty, domestic happiness and comfort.