Tranquillity is the quality or state of being tranquil; that is, calm, serene, and worry-free.

The word tranquillity in the religious writings of Buddhism refers to tranquillity of the body, thoughts and Consciousness on the path to enlightenment.

The Visuddhimagga identifies seven things from which bodily and mental tranquillity arise:

1. Using superior food
2. Living in a good climate
3. Maintaining a pleasant posture
4. Keeping to the middle
5. Avoidance of violent persons
6. Cultivation of persons tranquil in body
7. Resoluteness upon tranquillity

Exposure to nature contributes to physical and psychological wellbeing in children. Positive impacts on tranquillity:

• Natural landscape
• Rivers, streams, lakes or the sea
• Birds and other wildlife
• Wide open spaces
• Clear open night sky with/without moon
• Beach in a unique location
• Open field, flora