The origin of the Christian life is in arousal by grace. A person who has heeded this arousal is not then deprived of guidance by grace and communion with it at all times, as it persists through proper attention to it.
Do not be surprised that when you draw near to virtue, grievous and intense tribulations come to you on all sides: for virtue is not considered virtue, if it does not involve hard work.
Christ did not spare even His holy apostles from temptation, and He therefore gave them grace. When Satan himself began to wreak his malice on the Apostle Paul, Paul prayed that Satan be removed from him. But the Lord replied 'My grace is sufficient for thee.' In other words, if you have to suffer at Satan's hands, My grace is sufficient for your suffering. If you have to struggle with Satan, again my grace is sufficient for you. If you desire to overcome Satan, again My grace is sufficient. Grace is a weapon that can be used for everything. Grace is stronger than all adversities, all assaults, all the powers of darkness. Grace is both unconquerable and conquering. Therefore, my brethren, we must pray to God to give us His almighty grace. Grace is God dwelling in us. Grace is the Kingdom of God within us. When God's grace is within us, then it is day in our souls. And the day means light, knowledge and freedom from fear. We cannot ask here on earth, my brethren, for a greater gift from God than divine grace. Should we receive the entire universe as a gift, it would be less than the grace of God.
He who seeks grace from God must, above all, endure temptations and afflictions no matter how they come. Otherwise, if he becomes indignant and doesn't show enough patience during temptation, neither will grace manifest itself, nor will his virtue be perfected or will he be counted worthy of any spiritual gift.
A Christian has great difficulty in attaining three things: grief (over sins), tears, and the continual memory of death. Yet these contain all of the other virtues.
Do not be deluded by thoughts that virtue exceeds your powers and is impossible for you; but, inspired by faith, boldly make a beginning, show before God your good will and diligence - and you will see the help He will send you to practice virtue.
A house roof is held up by the foundations and the rest of the building, and the foundations with the rest of the building are laid to hold the roof - since both are necessary and useful - and neither is the roof built without the foundations and the rest of the house, nor can foundations and walls without a roof make a building fit to live in. So it is with the soul: the grace of the Holy Spirit is preserved by keeping the commandments, and the keeping of commandments is the foundation laid for receiving the gift of God's grace. Neither does the grace of the Holy Spirit remain in us without our obeying the commandments, nor can obeying the commandments be useful and salutary without Divine grace.
The abstinent withdraws from gluttony, the uncovetous from covetousness, the silent from wordiness, the pure from attachment to sensory pleasures, the chaste from fornication, he who is content with what he has from love of money, the meek from agitation (anger), the humble from vanity, the obedient from objection, he who is honest with himself from hypocrisy; equally, he who prays withdraws from despair, the willing pauper from acquisitiveness, he who professes his faith from denying it, the martyr from idolatry – so you see that each virtue, performed even unto death, is nothing but withdrawal from sin; and withdrawal from sin is a natural action, not an action which could be rewarded by the kingdom.
'Grace always precedes temptations.' He knew that grace always precedes temptations as a forewarning preparation. As soon as you perceive grace, gird yourself and say: 'Here comes the call to battle! Beware, attend, O Clay, to where the wicked on will strike the battle. Many times it comes quickly, and many times after two or three days. In any event, it will come, and the earthworks must be firm. Confessions every evening, Obedience to the elder, humility and love towards all. By these means lighten the affliction.' Grace is divided into three stages: purifying, enlightening, and perfecting. So also are deeds: natural, supernatural, contranatural. According to these three stages on ascends and descends. The great gifts one receives are also three: contemplation, love, dispassion.
Favors are given in exchange of faith. Grace is poured out, which faith receives. And as from a fountain some draw a little water in little vessels, and others draw more in bigger vessels, the fountain not distinguishing between the one vessel and the other, since it is the vessels, not the fountain, that measures the water, and each draws according to his measure; and as the splendor of light enters to a greater or less degree according to the dimensions of the window, so is grace received according to the measure of our desire.