"Quiet contemplation" means being in a calm and peaceful state of mind, while deep thinking and reflecting on something without any distractions or noise. Full definition
Sometimes a few moments of quiet contemplation can really boost productivity. (hpr2.org)
Pop Art has never been known to have much time for quiet contemplation. (latimesblogs.latimes.com)
The group will then spend some time in quiet contemplation while participating in seasonal volunteer work and taking a peaceful stroll of the farm. (rodaleinstitute.org)