Why isn’t spirituality taught in Christian churches?!?

Until about 20 years ago, spirituality as a term and specific form of study was not used at all outside of Catholicism… including other religions, but especially within Protestantism. Part of my own (and many that I know who are not in the church) frustration with the churches I have been a part of is that there is no real teaching on processing and/or growing in direct spiritual experience of God.