Vipassana meditation
Mentioned as an alternative method of prayer and reflection, similar to the 'holy hour' concept.
Videos Mentioning Vipassana meditation

Arthur Brooks — Finding The Meaning of Your Life
Tim Ferriss
Mentioned as an alternative method of prayer and reflection, similar to the 'holy hour' concept.

Insights from Tara Brach, Ryan Holiday, Maria Popova, and Cal Newport | The Tim Ferriss Show
Tim Ferriss
A basic guided meditation practice that Maria Popova uses, often with specific recordings from Tara Brach.

Using Meditation to Focus, View Consciousness & Expand Your Mind | Dr. Sam Harris
Andrew Huberman
A mindfulness practice that involves 'scrupulous attention' to sensory experience, breaking down perceptions into microscopic, brief sensations to reveal the ephemeral nature of all experience, including pain and emotions.

Tribe of Mentors — Naval Ravikant, Susan Cain, and Yuval Noah Harari | The Tim Ferriss Show
Tim Ferriss
A practical meditation technique focused on observing breath and bodily sensations, discussed by Yuval Noah Harari as a transformative practice for self-understanding and managing suffering.