- Sunlight
- Melatonin
- Body temperature
The Dao takes its model from what is so of itself.老子《道德经》第二十五章
The world around you
Same days
different contexts
different personas




Illustrative readings, shown to compare environments — not a live forecast.

9:20 – 9:45 AM

Morning light advances the clock; evening light delays it.
Within an hour of waking

Relative intensity
Broad across the day, and it penetrates deeper into skin.
Every 2 hours from 10 AM – 4 PM

Relative intensity
A narrow spike around noon, and it acts mainly on the outer layer.
The hour either side of solar noon

Perceived tension
Load is not the problem; unbroken load is.
After lunch, before 2 pm

A more human tomorrow
Made for a life
in motion,
DAO moves
with you
One instrument, reading the light, climate and season you are actually in.