who his own self bore our sins in his body on the tree, that we, having died to sins, might live to righteousness; by whose stripes you were healed.

 (a) Logos ( G3056) is the great Stoic word for the reason which guides the universe; logikos ( G3050) is a favourite Stoic word which describes what has to do with this divine reason which is the governor of all things. If this is the word's connection, clearly spiritual is the meaning. 