"But how," I asked Father Seraphim, "can I know that I am in the grace of the Holy Spirit?"

"It is very simple, your Godliness," he replied. "That is why the Lord says: 'All things are simple to those who find knowledge' (Prov. 8:9, Septuagint). The trouble is that we do not seek this divine knowledge which does not puff up, for it is not of this world. This knowledge which is full of love for God and for our neighbour builds up every man for his salvation. Of this knowledge the Lord said that God wills all men to be saved, and to come to the knowledge of the truth (I Tim. 2:4). And of the lack of this knowledge He said to His Apostles: Are you also yet without understanding (Mat. 15:16)? Concerning this understanding [15], it is said in the Gospel of the Apostles: Then opened He their understanding (Lk. 24:45), and the Apostles always perceived whether the Spirit of God was dwelling in them or not; and being filled with understanding, they saw the presence of the Holy Spirit with them and declared positively that their work was holy and entirely pleasing to the Lord God. That explains why in their Epistles they wrote: It seemed good to the Holy Spirit and to us (Acts 15:28). Only on these grounds did they offer their Epistles as immutable truth for the benefit of all the faithful. Thus the holy Apostles were consciously aware of the presence in themselves of the Spirit of God. And so you see, your Godliness, how simple it is!"

"That is why some people say: "These passages are incomprehensible. Is it really possible for people to see God so openly?" But there is nothing incomprehensible here. This failure to understand has come about because we have departed from the simplicity of the original Christian knowledge. Under the pretext of education, we have reached such a darkness of ignorance, that the things the ancients understood so clearly, seem to us almost inconceivable. Even in ordinary conversation, the idea of God's appearance among men did not seem strange to them. Thus, when his friends rebuked him for blaspheming God, Job answered them: "How can that be when I feel the Spirit of God in my nostrils?" (cf. Job 27:3). That is, "How can I blaspheme God when the Holy Spirit abides with me? If I had blasphemed God, the Holy Spirit would have withdrawn from me; but look! I feel His breath in my nostrils."

"That is it, your Godliness [lit. "your God-lovingness"]. Acquiring the Spirit of God is the true aim of our Christian life, while prayer, fasting, almsgiving and other good works done for Christ's sake are merely means for acquiring the Spirit of God."

"What do you mean by acquiring?" I asked St. Seraphim. "Somehow I don't understand that."

"Acquiring is the same as obtaining," he replied. "Do you understand, what acquiring money means? Acquiring the Spirit of God is exactly the same. You know very well enough what it means to acquire in a worldly sense, your Godliness. The aim of ordinary worldly people is to acquire or make money; and for the nobility, it is in addition to receive honors, distinctions and other rewards for their services to the government. The acquisition of God's Spirit is also capital, but grace-giving and eternal, and it is obtained in very similar ways, almost the same ways as monetary, social and temporal capital.

"God the Word, the God-Man, our Lord Jesus Christ, compares our life with the market, and the work of our life on earth He calls trading. He says to us all: "Trade till I come" (Lk. 19:13), "buying up every opportunity, because the days are evil" (Ephesians 5:16). In other words, make the most of your time getting heavenly blessings through earthly goods. Earthly goods are good works done for Christ's sake that confer the grace of the All-Holy Spirit, on us."