The idea of personal existence beyond the grave in any definite sense was a late development in Jewish thought, though apparently there was a belief in Sheol as a vague and shadowy place of departed spirits, good and bad alike. (religion-online.org)
For Yellin, «the universe and the mind are shadowy places seething with dark magic, seas of boundless depth and possibility, overflowing with joy and disaster.» (scadmoa.org)
«Phantom Thread» takes its time and goes into some very shadowy places; it isn't for everyone. (bostonglobe.com)