"Prayer, fasting, vigil and all other Christian activities, however good they may be in themselves, do not constitute the aim of our Christian life, although they serve as the indispensable means of reaching this end. The true aim of our Christian life consists in the acquisition of the Holy Spirit of God. As for fasts, and vigils, and prayer, and almsgiving, and every good deed done for Christ's sake, they are only means of acquiring the Holy Spirit of God. But mark, my son, only the good deed done for Christ's sake brings us the fruits of the Holy Spirit. All that is not done for Christ's sake, even though it be good, brings neither reward in the future life nor the grace of God in this. ..."
"What do you mean by acquiring?" I asked Father Seraphim. "Somehow I don't understand that."
"Acquiring is the same as obtaining," he replied. "You understand, of course, what acquiring money means? Acquiring the Spirit of God is exactly the same. You know well enough what it means in a worldly sense, your Godliness, to acquire. The aim in life of ordinary worldly people is to acquire or make money, and for the nobility it is in addition to receive honours, 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 a market, and the work of our life on earth He calls trading, and says to us all: Trade till I come, redeeming the time, because the days are evil. That is to say, make the most of your time for getting heavenly blessings through earthly goods. Earthly goods are good works done for Christ's sake and conferring on us the grace of the All-Holy Spirit."
- St. Seraphim of Sarov