In a manner that consumes or absorbs; intensely and completely; with all-consuming focus.
From consuming (present participle of consume) plus -ly. Uses the metaphor of fire to describe how something completely engages attention.
Love, grief, and obsession are described as 'consuming' because they function like internal fires—this metaphor is so universal that it appears across dozens of unrelated languages.
Complete word intelligence in one call. Free tier — 50 lookups/day.