Jesus, Who is He?
In the most elementary of descriptions, Jesus has an unconditional love for us. We sometimes choose to turn away from God, but His love remains constant regardless of our actions, and He desires that we always turn to Him with complete trust. His true image below,

Book: Life of Christ by Sheen, Fulton J.
Jesus said, "For this reason I was born and have come into the world, to testify to the truth". 'Religion' is a man-made word used to define a concept, to encase it into a manageable category, later subdivided into sub-categories, and so on. After defining its parts, we proudly toss words aside into a bucket full of other definitions. Overwhelmed by man-made fantasies, theories, fiction, arrogantly trying to redefine life through vanity, man has managed to bury inside a bucket, in what is now a house of mirrors, the most crucial Truth for his own salvation.

Jesus Christ in the Trinity, the only Son of God, eternally begotten of the Father, God from God, Light from Light, true God from true God, begotten, not made, of one Being with the Father.
Saint Anselm (1033-1109) clarified for us,
I give thanks that God has created His image in me, so that I may remember Him, think of Him, love Him. But this image is worn away by vice, darkened by the smoke of sin, that it can not do what it was made to do unless God renews it and reforms it... God is perceptive and all knowing without a body, and thus nothing can have power against Him... God is something which nothing greater can be thought to exist both in the mind and reality... God alone can be thought of as not existing, and yet possesses existence to the highest degree.
Saint Augustine (420ac) said,
God does not look ahead to the future, look directly at the present, look back to the past. He sees in some other manner, utterly remote from anything we experience. God does not see things by turning his attention from one thing to another. He sees all without any kind of change. God comprehends all these in a stable and eternal present... he does not consist of mind and body... nor does his attention pass from one thought to another.
Book: City of God by Augustine of Hippo
Let us understand how this knowledge applies to us in our modern times,