Seems to me that the act of labeling something as a "spiritual teaching" is in itself not a good idea because many will start claiming the teaching is "from" someone or someplace other than just some good ideas from one or more (very fallible) human(s). The problem (imo) with spirituality is that humans say some teaching speaks the word of God & demand all of it be accepted literally. If you or I say some things which are good ideqas & they propagate, there is a chance humanity might be positively effected. But if somewheres along the line one of us gets labeled as a prophet from God, then all our stupid half-baked ideas get propagated too, and that just destroys any possible good our greeat ideas might have.