Yesterday evening, I went to the monastery here for the trisagion at the tomb of Elder Sophrony, and I took the opportunity to look in the bookshop at a few books on marriage. One was by John Meyendorff, Marriage: an Orthodox Perpsective in which it was abundantly clear that life was not restricted by the Church to marriage or monasticism. Meyendorff has written further (Christian Marriage in Byzantium: The Canonical and Liturgical Tradition) on this subject and quotes the canons of the Council of Gangra which say: "anyone who shall condemn marriage" (canon 1), any "virgin abstaining from marriage because he/she abhors it, and not on account of the beauty and holiness of virginity itself" (canon 9), "anyone who, while living a virgin life, shall treat married people arrogantly" (canon 10). There is no mention of monasticism.
There is nothing in the Church's canons that says a person must be married or a monastic. We have saints who lived a chaste single life and were not monastics. As has been said, saints have commended and blessed the single life because virginity and shunning of worldly pursuits is preferable. When virginity is praised as angelic, it is because that state has both ascetical and eschatological aspects; hierarchy is not mentioned in this connection.
Seraphim asserts that the single chaste life lived is not blessed by the Church. He who asserts must prove. There is evidence (provided in the writings of John Meyendorff and others, as well as St Theophan the Recluse) that the single chaste life has, since apostolic times to our own times, been blessed as considered a laudable ascetical path, and we see the actual blessing of particular individuals to this way by St Theophan and St Barsanuphius.