The Begotten Son
http://truelove.org/csg2/Book_8_LIFE_OF_FAITH.html#bookmark08-2

Book 8, Chp. 1, Sec. 2
Jesus, the begotten Son

20 Why did Jesus claim to be the begotten Son of God? The reason he made a statement that was so hard for the people of his day to believe was because he wanted to give them the benefits of instantly making a leap forward in faith through having believed in him. If the people had boundless faith in Jesus, their cries would have reached Heaven and their faith would have grown with great strides.

The higher the level of your faith in the center of the heavenly kingdom, the greater the works the spirit world can do through you. If you possess boundless faith, then according to the quality of your character, you will be able to immediately feel the realities of the world beyond your physical senses and beyond the physical universe to a degree you cannot imagine. Unfortunately, human beings lost this amazing ability.

If a believer has the ambition to ceaselessly advance toward the infinite world, he or she will have to face a cosmic battle. He or she will have to vanquish the forces that insist that human beings remain within a hemmed-in realm of faith. (3-021, 1957.09.08)

• CSG, Book 1, p. 806