From this minute of his new life, the repentant sinner commences his podvig, struggle, and labor, and begins to bear the burden, the yoke. This is so essential that all the saints accept the only true path to virtue to be pain and hard work. On the contrary, lightness and ease are a sign of a false path, for the kingdom of God suffereth violence, and the violent take it by force (Matt. 11:12). Anyone who is not struggling, not in podvig, is in prelest.
In many cases when we ask why certain Orthodox Christians live according to the customs of sin, rather than according to the law of God, we receive the answer that everyone lives that way now. However, being Christians, we should not consider ourselves in this world like 'everyone,' but like the 'Chosen People' to whom the Apostle Peter wrote that they are 'a people belonging to God, that [they] may declare the praises of Him Who called [them] out of darkness into His wonderful light' (1 Peter 2:9). Are we permitted to measure our responsibility before God with the same measure as the unbelieving and those who have no hope of Heaven?
How many are there that say: how much I wish to see Christ's fair form, His figure, His clothes. His very shoes. Why, here you see Him: you touch Him; you consume Him: and while you are longing to see His clothes, He gives you Himself, not to look at only, but to touch and to eat and to receive within you .... For it was not enough for Him to become man. Nor yet to be buffeted and slain. He ever mingles Himself with us, and makes us His Body, not by faith alone, but in very truth and reality,...That which the Angels behold with trembling and dare not gaze on with fear because of the radiance that beams from Him, with that we are fed.
When an archer desires to shoot his arrows successfully, he first takes great pains over his posture and aligns himself accurately with his mark. It should be the same for you who are about to shoot the head of the wicked devil. Let us be concerned first for the good order of sensations and then for the good posture of inner thoughts.
What does it mean to be as wise as a serpent? When a serpent is attacked, it is willing to have much of its body severed, as long as it saves the head. So to be wise as a serpent means to be willing to lose everything - your wealth, your reputation, your friends - as long as you save your faith. Your faith is your head, by which you learn all truth; and by that truth your soul is set free. We should, however, recognize that the wisdom of the serpent is not enough; we must be honest and innocent as doves. Indeed it is the combination of wisdom and innocence that creates virtue. The person who is wise as a serpent can sustain the most terrible attacks and still continue to flourish as a disciple of Christ. The person who is innocent refuses to retaliate against those who make the attacks. To be as innocent as a dove means never to take revenge on those who wrong you or undermine you. Unless wisdom is tempered by innocence, one attack provokes another, and conflict continues without end. Unless innocence is tempered by wisdom, a person is so vulnerable that he will not even survive a single attack. Rest assured that no one can ever take away your faith; your wisdom guards against that. But be careful never to bear a grudge against anyone who does you wrong.
This reversal of thoughts is the strongest means, not only for repelling accidental critical thoughts, but also for completely freeing yourself of this vice…
In preparing for battle, however, do not think that you will always be victorious. Often there will be only hardship that will bring nothing but affliction... Provide yourself with only one thing, strong courage: no matter what happens, stay with what you have begun... No matter how life goes, whatever successes and failures there are, you should give all of this over to God's will.
Do not the angels differ from us in this respect, that they do not want so many things as we do? Therefore the less we need, the more we are on our way to them; the more we need, the more we sink down to this perishable life.
When He had fasted for forty days and for forty nights, and afterwards was hungry, He gave an opportunity to the devil to draw near, so that He might teach us through this encounter how we are to overcome and defeat him.