A special word must be said about fasting during lent. Generally speaking, fasting is an essential element of the Christian Life. Christ fasted and taught men to fast. Blessed fasting is done in secret, without ostentation or accusation of others (Mt 6:16; Rom 14). It has as its goal the purification of our lives, the liberation of our souls and bodies from sin, the strengthening of our human powers of love for God and man, the enlightening of our entire being for communion with the Blessed Trinity.
The Orthodox rules for lenten fasting are the monastic rules. No meat is allowed after Meatfare Sunday, and no eggs or dairy products after Cheesefare Sunday. These rules exist not as a Pharisaic “burden too hard to bear” (Lk 11:46), but as an ideal to be striven for; not as an end in themselves, but as a means to spiritual perfection crowned in love. The lenten services themselves continually remind us of this.
Let us fast with a fast pleasing to the Lord. This is the true fast: the casting off of evil, the bridling of the tongue, the cutting off of anger, the cessation of lusts, evil talking, lies and cursing. The stopping of these is the fast true and acceptable. (Monday Vespers of the First Week)
The lenten services also make the undeniable point that we should not pride ourselves with external fasting since the devil also never eats!