meditation

noun

1. (countable, uncountable)A devotional exercise of, or leading to, contemplation.
2. (countable, uncountable)Any of various types of achieving more or less altered states of consciousness, such as vacancy of mind or prolonged contemplation on a single sensation or thought, through relaxed or focused mental and physical activity generally of a nonstrenuous and non–substance-induced nature.
3. (countable, uncountable)A contemplative discourse, often on a religious or philosophical subject.

   “Her book is less a cookbook than a meditation on the craft of cookery.”

4. (countable, uncountable)A musical theme treated in a meditative manner.
5. (countable, uncountable)Careful and thorough thought.

   “deep meditation”

   “in meditation”

   “He was lost in careful meditation on how best to proceed when a sudden phone call forced him to decide.”