Involves

verb

1. To roll or fold up; to wind round; to entwine.
2. To envelop completely; to surround; to cover; to hide.

   "to involve in darkness or obscurity"

3. To complicate or make intricate, as in grammatical structure.
4. To connect with something as a natural or logical consequence or effect; to include necessarily; to imply.
5. To take in; to gather in; to mingle confusedly; to blend or merge.