What sets Christian spiritual activity apart from all other...

What sets Christian spiritual activity apart from all other religions is that they have knowledge of Christ as their goal; not moral perfection (although you will become more moral), not tranquility (although your life will be remarkably more peaceful). And because of the grace you have in Christ, the disciplines will do nothing to make you more accepted by the Father. You cannot be more accepted than you already are in Christ, since He has already done it all for you!