This has a beautiful but ominous feel to it, softly suggesting few have a willingness to release themselves from every form of earthly cage. I wasn't sure if the remaining caged spirit was personal, or metaphorical. Not being Christian, I may not be understanding all the Christ/spirit/sacrificial implications you might be intending here.
It's an interesting write, but I think if you registered as a poet, maybe made JesusChristPose the title of this post, post it in Open forum, rather than JCP as your posting name, you would get more readings. Kacy