rumination

noun

1. (countable, uncountable)The act of ruminating; i.e. chewing cud.
2. (countable, figuratively, uncountable)Deep thought or consideration.

   “Amid these internal battles is a clear vision of the chaotic world outside, too; ‘Bless The Bold Future’ is a nuanced rumination on the dangers of bringing new life onto a planet in turmoil”

3. (countable, uncountable)Negative cyclic thinking; persistent and recurrent worrying or brooding.
4. (countable, uncountable)An eating disorder characterized by repetitive regurgitation of small amounts of food from the stomach.