Spiritual art doesn't have meaning. It has mood which when caught invites you to encounter the presence through its portal. The ensuing dialogue between the two of you, one on this side of time and the other no longer bound by it, will do what is needed.
Curators kill the art by reducing it to explanations, biography, narratives and movements. They are the butchers of the art world killing the art so that they can dissect it for the museum's cafeteria.