EMBER DAYS and Ember Weeks, the four seasons set apart by the Western Church for special prayer and fasting, and the ordination of clergy, known in the medieval Church as quatuor tempora, or jejunia quatuor temporum.
1009 ("jejunia quatuor tempora quae imbren vocant").
It corresponds also with Pope Leo the Great's definition, "jejunia ecclesiastica per totius anni circulum distributa."
Arguunt nos quod jejunia propria custodiamus, quod stationes plerumque in vesperam producamus, quod etiam xerophagias observemus, siccantes cibum ab omni carne et omni j urulentia et uvidioribus quibusque pomis, nec quid vinositatis vel edamus vel potemus; lavacri quoque abstinentiam congruentem arido victui.
The faithful were simply enjoined to submit themselves to church authority on the subject; and the clergy were exhorted to urge their flocks to the observance of frequent jejunia, as conducive to the mortification of the flesh, and as assuredly securing the divine favour.