Drifting far, straying all alone,
formless, recumbent in a cave.
They will be free from Mara’s bonds
who restrain this mind.
- Dhammapada Verse 37
Explanation: The mind is capable of travelling vast distances - up or down, north or south, east or west - in any direction. It can travel to the past or the future. It roams about all alone. It is without any perceptible forms. If an individual were to restrain the mind fully, he will achieve freedom from the bonds of death.