St. John Cassian

We must not avoid communion because we deem ourselves to be sinful. On the contrary, we must approach it more often for the healing of the soul and the purification of the spirit, to show our humility and faith, by considering ourselves unworthy and in need … that we desire even more the medicine for our wounds. Otherwise it is impossible to receive communion once a year, as certain people do … considering the sanctification of heavenly Mysteries as available only to saints. It is better to think that by giving us grace, the sacrament makes us pure and holy. Such people who receive less often manifest more pride than humility … for when they receive, they think of themselves as worthy. It is much better if, in humility of heart, knowing that we are never worthy of the Holy Mysteries we would receive them every Sunday for the healing of our diseases, rather than, blinded by pride, think that after one year, receiving once or twice yearly, we become worthy of receiving them.”

St John Cassian + 435 AD