religious training and belief — parallel position test

A sincere and meaningful belief which occupies in the life of its possessor a place parallel to that filled by the God of those admittedly qualifying for the exemption comes within the statutory definition. This construction avoids imputing to Congress an intent to classify different religious beliefs, exempting some and excluding others, and is in accord with the well-established congressional policy of equal treatment for those whose opposition to service is grounded in their religious tenets.

Defined by the Supreme Court in - United States v. Seeger, 380 U.S. 163 (1965).