The Sunday Pranasphere: December 21, 2025


The Sunday Pranasphere

Winter Solstice | The Science Behind the Turning

Featured Lesson: Winter Solstice
The Hard Wired: Vitomir Maričić
Between the Covers: John Vaillant
The Pranasphere Merch: Is now here
This Week’s Sponsor: Leigha Nicole

Hi Friend,
Get the download, PDF style:
The Science Behind the Turning


Today marks the winter solstice—the moment Earth's Northern Hemisphere reaches its maximum 23.5-degree tilt away from the sun, giving us the shortest day and longest night of the year. Tomorrow the light begins its return. Your suprachiasmatic nucleus—a cluster of 20,000 neurons behind your eyes—is tracking this shift right now, regulating melatonin production, cortisol release, and every circadian rhythm in your body. Ancient peoples at sites like Newgrange and Göbekli Tepe engineered structures to capture this exact astronomical moment thousands of years before modern science could explain why our nervous systems respond so profoundly to maximum darkness exposure.
The turn is already happening.
Enjoy the longest night, and welcome the light's return.
Enjoy, Dennis


The Pranasphere Merch

Get it here: The Pranasphere Vintage Hat
I've seen this symbol welcome thousands of students through my studio doors over the years. Three Aum symbols together in the Enso (円相) fashion—has a special place in my heart. A north star through transitions, through changes, through growth. If you've been part of this journey, you know what it means. If you're just finding us, welcome.

The Triple Aum: The Buddha, The Dharma and The Sangha.
Enso (円相): The Zen Circle


The Hard Wired

The Hard Wired is a term I use to represent people (authors, thought leaders...), subjects, places etc. that I tap into on a regular basis and most likely will go to see in person or already have...


Vitomir Maricié

Vitomir Maričić is a Croatian world-record-holding freediver famous for his incredible breath-hold achievements, most notably setting a Guinness World Record in June 2025 by holding his breath underwater for 29 minutes and 3 seconds, using pure oxygen to extend his time beyond typical human limits. He uses his platform to promote ocean conservation, supporting groups like Sea Shepherd and raising awareness about marine issues.

His Website: https://vitomirmaricic.com/
Instagram: https://www.instagram.com/maverick2go


Between The Covers

Wicked weekly picks from my personal collection—from ancient texts to contemporary journalism, classical literature to obscure discoveries.

My current fav:
John Vaillant: The Golden Spruce
Purchase it directly from
Ryan Holiday bookstore "The Painted Porch" Here.

First "Tiger" and now "The Golden Spruce."
Read these books...

Here is an excellent podcast interview done between Ryan Holiday and John Vaillant : Rising from Ashes | John Vaillant on Building Resiliency From Destruction


Special Products by Dennis Dean

Dennis is master craftsman and a true entrepreneur.
Many of his products are handmade by him or he has provided direct stewardship in the design & manufacturing of the product.. Enjoy


Past Newsletters to review & share...


This Weeks Sponsor:

Leigha Nicole has been presented in my "The Hard Wired" section.
Devoted Yogini, Kind Heart, vicious wisdom..
Please take the time to visit her sites:
LinkTree: Find it all here
Facebook: https://www.facebook.com/leighanicoleyoga
Instagram: https://www.instagram.com/leighanicoleyoga/


Know you are the light, Dennis


The Pranasphere™ represents the ecosystem from
pranayama.com - The voice of Dennis Dean.
Rooted in Prana.
Welcoming to all traditions
of life-force wisdom.
---

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Dennis Dean

Rooted in thirty-five years of experience, Dennis Dean has shared the practice of yoga nationally and internationally, founding and guiding four yoga shalas along the way. A lifelong reader and writer, he has been publishing newsletters since 1994, offering reflections that weave together philosophy, practice, and lived experience. At 65, he remains passionately committed to cultivating his pedagogical skills and continuing the growth that has shaped his decades of practice—even when it requires shedding the skin of ingrained or indoctrinated perceptions to fully embrace new ones.

Read more from Dennis Dean

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