"Dear children, with motherly love I desire to teach you sincerity, because I desire that, in your actions as my apostles, you be exact, resolute, and above all sincere. I desire that, by the grace of God, you be open for a blessing. I desire that by fasting and prayer you obtain from the Heavenly Father the cognition of what is natural and holy - Divine. Filled with cognition, under the shelter of my Son and myself, you will be my apostles who will know how to spread the Word of God to all those who do not know of it; and you will know how to overcome obstacles that will stand in your way. My children, by means of a blessing, God's grace will descend upon you and you will be able to retain it through fasting, prayer, purification and reconciliation. You will have the efficiency which I seek of you. Pray for your shepherds that the ray of God's grace may illuminate their ways. Thank you." (February 02, 2014)
2: Effective operation as measured by a comparison of production with cost (as in energy, time, and money); the ratio of the useful energy delivered by a dynamic system to the energy supplied to it.