CREATE TABLE table_72204 ("Acquisition" TEXT, "knowledge" TEXT, "penance" TEXT, "permanence of the body" TEXT, "constancy" TEXT, "purity" TEXT)

what's the permanence of the body where purity is apprehension
SELECT "permanence of the body" FROM table_72204 WHERE "purity" = 'apprehension'
SELECT "permanence of the body" FROM "table_72204" WHERE "purity" = 'apprehension'