The standard is clear. If something we think, see, hear, or do distances us from the Holy Ghost, then we should stop thinking, seeing, hearing, or doing that thing. If that which is intended to entertain, for example, alienates us from the Holy Spirit, then certainly that type of entertainment is not for us. Because the Spirit cannot abide that which is vulgar, crude, or immodest, then clearly such things are not for us. Because we estrange the Spirit of the Lord when we engage in activities we know we should shun, then such things definitely are not for us.