Chapter 4: Jesus Christ, the Son of God, B: Jesus Christ is a Being of Glory, Might, and Majesty

Christ has all power, in heaven and earth. He has power over the Earth just like the Father does.

And he received all power, both in heaven and on earth, and the glory of the Father was with him, for he dwelt in him.
D&C 93:17

And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.
Matthew 28:18

Who is gone into heaven, and is on the right hand of God; angels and authorities and powers being made subject unto him.
1 Peter 3:22

Christ has a fullness of the Father's attributes. Christ is a full member of the Godhead and the member who we seem to deal with most directly. We can trust that he has the fulness of attributes and power of God, which he gained piece by piece.

And I, John, saw that received not of the fulness at the first, but received grace for grace; And he received not of the fulness at first, but continue from grace to grace, until he received a fulness; And thsu he was called the Son of God, because he received not of the fulness at the first. And I, John, bear record, and lo, the heavens were opened, and the Holy Ghost descended upon him in the form of a dove, and sat upon him, and there came a voice out of heaven sayin: This is my beloved Son. And I, John, bear record that he received a fulness of the glory of the Father; And he received all power, both in heaven and on earth, and the glory of the Father was with him, for he dwelt in him.
D&C 93:12-17

Thus saith the Lord your God, even Jesus Christ, the Great I AM, Alpha and Omega, the beginning and the end, the same which looked upon the wide expanse of eternity, and all the seraphic hosts of heaven, before the world was made; The same which knoweth all things, for all things are present before mine eys; I am the same which spake, and the world was made, and all things came by me.
D&C 38:1-3

For in him dwelleth all the fulness of the Godhead bodily. And ye are complete in him, which is the head of all principality and power.
Colossians 2:9-10

The Savior did not have a fulness at first, but after received his body and the resurrection all power was given unto him both in heaven and in earth. Although he was a God, even the Son of God, with power and authority to create this earth and other eaths, yet there were some things lacking which he did not receive until after his resurrection. In other words he had not received the fulness until he got a resurrected body.
Joseph Fielding Smith, Doctrines of Salvation, 1:33

Christ is the light of the world. I believe this is part literal and part figurative. There are a lot of meanings you can draw from this statement, which I'm sure is intended. One meaning I think is important is to remember that all hope and happiness in this life is made possible by the Savior.

And that I am the true light that lighteth every man that cometh into the world.
D&C 93:2

The light and the Redeemer of the world; the Spirit of truth, who came into the world, because the world was made by him, and in him was the life of men and the light of men.
D&C 93:9

In him was life; and the life was the light of men.
John 1:4

The spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life.
John 8:12

See also D&C 88:5-13