Hesychia
The Greek term hesychia (, ) is a concept that can be translated as "stillness, rest, quiet, silence". In Christianity

In the Eastern Orthodox Christian mystical tradition of hesychasm, hesychia refers to a state of stillness and peace that is obtained through extreme ascetical struggle, prayer, and the constant contemplation of God. The attainment of hesychia is a central theme discussed in hesychast literature. Chapter 2 of the Systematic Sayings of the Desert Fathers is dedicated to the topic of hesychia. In Neoplatonism

The term is also used in Neoplatonic texts such as the Enneads. See also

Monastic silence
Apatheia
Inner peace
Tranquility
Centering prayer
Quietism (Christian philosophy)
Christianity and Hellenistic philosophy
Neoplatonism and Christianity
Mauna (silence) in Hinduism

References

Hesychasm
Christian contemplation
Christian mysticism
Christian prayer
Christian terminology
Silence
Meditation
Neoplatonism