Vision is at two levels; each impacts the other. We 'see' in context of self-interest, sometimes overlooking our total interdependence with all other in the Sacrament of Natural Order - we are inwardly sighted, consciously, physically, and externally sighted - eyes inform both levels of consciousness that put self and other interest in context/ conflict with common, eucharistic values of nature's vital, diverse fabric.
Eucharist has vertical and horizontal dimensions; personal/ spiritual vision has to be physically concerned with self-needs even as it must be broadly insightful of universal and mutual physical interdependence with all other. Vertical Eucharist is consciousness rightly informed.
The mutuality of common interest speaks to the sacred condition of Eucharistic Provision in the Naturalis Sacramentum Ordinis. To be authentically sighted, we must develop double vision that is sensitive to both Prevision and Provision. http://www.secondenlightenment.org/REDEEMING%20RELIGION.pdf