And it held for a time – deep into the second period, in fact.
The origin of the Sun Dance is unclear; most tribal traditions attribute its conventions to a time deep in the past.
Cougars possess a kind of Pleistocene wildness, reminding us of a time — deep in our evolutionary past — when we were prey to big cats.
These are what Marina Warner calls in her new history of fairytale, Once Upon a Time, "deep aquifers of story… emerging here and there in waterfalls and powerful rivers".
It's a time for deeper reflection beyond this horrible situation".
"The level of destruction of society was a million times deeper than anyone expected".
The planet is scarred by a vast chasm, the Valles Marineris, which is five times longer and two and a half times deeper than the Grand Canyon.
In particular, a 1.8-times deeper imaging depth is expected for scattering samples such as brain tissues.
The violence came at a time of deep political uncertainty.
But Easter is a time for deep contemplation, too.
