nourish - To provide food or other substances necessary for growth, health, and good condition; also to support or promote the development of something (like ideas, feelings, or relationships).
She worked hard to nourish her creativity by painting every day.
divisive - Causing disagreement or hostility between people, tending to disrupt unity or harmony.
The election was fought over the deeply divisive issue of immigration, and people on either side of the issue can't see things from the other point of view.