In response to some e-mail communications from Alan Roebuck (of The Orthosphere blog) I will here try to provide a concise summary of my core reason for being a Romantic Christian; and, in the process (and speaking for myself), an attempted definition of what Romantic Christianity might be.
My underpinning conviction is that God is the creator of reality, and is loving of each and every man and woman in the same qualitative way as the most ideal parents in an ideal family.
(i.e. God the creator is our Loving Father and Mother.)
The purpose behind creation is that Men be given the chance to become as God in divine stature (i.e. in love and creative power). The hope that as many as possible mortal Men will choose to become resurrected and immortal Men, and choose to dwell with God in Heaven as a loving divine family; working with God on eternal his divine creating.
Romantic Christianity is based on the conviction that such a God would never leave any of his children bereft of sufficient guidance and motivation for them to make that choice of resurrected life eternal and to live on earth such as to become more divine in that eternal life.
This principle of "None Left Bereft" implies, negatively, that sufficient guidance would not be allowed to depend on a particular child-of-God's access to a particular church, a particular book (The Bible), particular traditions, or any other of the specifics of human mortal life.
All of these sources of guidance are too uncertain, not universally available; and too open to both corruption, distortion and misunderstanding. Therefore: God would not rely-upon such mechanisms.
Positively; it therefore seems certain to me that God has created this world and our lives such that we all have direct access to the knowledge - the guidance and motivation - which we need for salvation and theosis.
Direct access means direct divine guidance from God ('direct' meaning 'mind to mind', not depending on language; that guidance will 'appear in our thinking' -i.e. 'intuition'); and this external guidance is in addition to the fact that - as sons and daughters of God - we all have a divine self; a core divine nature that enables us to receive and understand this directly-transmitted guidance.
My understanding of Romantic Christianity is that it is based on a conviction that this direct divine guidance (supplemented by that which is divine in each Man) ought-to-be the basis of every Man's Christianity as of 2021 (although this was not always true in the past, in some places).
I could continue explaining - but I shall keep it brief; and I think there is probably enough there.