Of the many things which impede our salvation the greatest of all is that when we commit any transgression we do not at once turn back to God and ask forgiveness. Because we feel shame and fear we think that the way back to God is difficult, and that He is angry and ill-tempered towards us, and that there is need of great preparation if we wish to approach Him. But the loving-kindness of God utterly banishes this thought from the soul. What can prevent anyone who clearly knows how kind He is and that, as it is said, “While you are yet speaking, He will say, ‘Here I am'” (Isa. 58:9), from approaching Him at once for the pardon of the sins which he has committed?

This is a scheme and device against us on the part of our common enemy, that he moves him whom he leads into sin with rashness and daring, but inspires men with shame and groundless fear once they have ventured on the most terrible deeds. Thus in the former case he prepares their fall, in the latter he does not permit them to rise anew, but rather both leads them away from God and prevents them from returning to Him. So he leads to the same ruin by opposite paths.

– St. Nicholas Cabasilas, The Life in Christ

St. Tikhon the Wonderworker of Voronezh and Zadonsk 1724-1783

This is the ladder by which Christians ascend toward perfection, that is toward love of enemies. What, then, Christian? When you are commanded to love your enemies, and to do good to those that hate you– commanded by Him Who created you and redeemed the lost by His blood and death, and Who holds your death and life in His hand– will you consent and forgive him who offended you? If an earthly king had commanded you not only to forgive your neighbor his offense, but also to serve him, or else be put to death, which had you better choose? To die or to forgive your neighbor? I hope that you would rather wish to forgive and serve your neighbor than to die. The Heavenly King commands you not only to forgive him that offended you, but also to love your enemies, and to do good to those that hate you. Otherwise eternal death will follow those that do not hear the commandment of the Heavenly King. Not everyone that saith unto Me, Lord, Lord, shall enter into the Kingdom of Heaven, but he that doeth the will of My Father which is in heaven (Mt. 7:21).

 Journey to Heaven

The true goal of our Christian life consists of acquiring God’s Holy Spirit. Fasting and vigil, prayer, mercy, and every other good deed performed for Christ — are means for acquiring the Holy Spirit of God. Only deeds performed for Christ give us the fruits of the Holy Spirit.

Some say that the foolish virgins lacking enough oil in their lamps is meant to be understood as a lack of good deeds (see Mt. 25:1-12). Such an understanding is not completely correct. How could there have been a lack of good deeds when they, though foolish, are still called virgins? For virginity is the highest virtue, as a state equal to the angels, and could by itself serve in place of all other virtues. I, the wretched, think that they did not have enough of the grace of the All-Holy Spirit of God. These virgins, because of their spiritual injudiciousness, supposed in performing good deeds that it is only necessary to do good works to be a Christian: “We performed a good deed and thus did God’s will.” Whether or not they had received the grace of the Holy Spirit, whether they had attained it, they did not even bother to find out … But, this acquiring of the Holy Spirit is in fact that oil which the foolish virgins lacked. They are called foolish because they forgot about the essential fruit of virtue — the grace of the Holy Spirit — without which there is no salvation for anyone and cannot be. For “through the Holy Spirit every soul is quickened, and through its purification, it is exalted and illumined by the Triune Unity in a Holy mystery.” The Holy Spirit Himself settles in our souls, and this occupation of our souls by Him, the All-Ruling, and this coexistence of our spirit with His One Trinity, is granted only through the diligent acquiring, on our part, of the Holy Spirit, which prepares, in our soul and body, the throne for the coexistence of God the All-Creator with our spirit, by the immutable word of God: “And I will walk among you and will be your God, and ye shall be my people” (Lev. 26:12).

This is the very oil in the lamps of the wise virgins, which burned brightly and steadily; the virgins with these burning lamps could await the Groom coming at midnight, and enter the chamber of joy with him. The foolish ones, seeing their lamps going out, though they went to the market to buy oil, did not manage to return in time, for the doors were already locked. The market is our life; the doors of the bridal chamber — locked and not permitting entrance to the Groom — human death, the virgins wise and foolish, Christian souls; the oil, not deeds, but the grace of the All Holy Spirit of God received through them, transforming from decay to incorruption, from emotional death into spiritual life, from darkness to light, from the manger of our existence, where our passions are tied like beasts and animals, into a church of God, into the all-lighted chamber of eternal joy in Jesus Christ.”

– St. Seraphim of Sarov (emphasis mine)