What is the meaning of Meditation?

A devotional exercise of, or leading to, contemplation.

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.

A contemplative discourse, often on a religious or philosophical subject.

A musical theme treated in a meditative manner.

Careful and thorough thought.

meditation

pondering

meditation

Source: wiktionary.org