And God said, Let us make man in our image, after our likeness: Genesis 1:26
After all the rest of creation was completed God turned to a final special work. The entire universe and every kind of created being had been "made." They were spoken into existence. Man was unique. He was "formed" by God from the elements of the Earth.
Being formed in the image and likeness of God has multiple implications.
In some essential manner the human form is representative of God. The principle illustration of this is in Jesus Christ Himself. The eternal Son of God came to dwell among us in human form. More than that, the glorified body in which He now and forever reigns is human in form.
Secondly, after the manner of the Trinity, Man was created with a tri-partite nature.
And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul. Genesis 2:7
This verse reveals the three components of the nature of man. From the earth itself came the BODY of man. Into that body God breathed His SPIRIT (this like no other living being of creation.) The spirit energizing the physical body created the living SOUL of man.
The BODY was made from the earth and functions to allow man to interact with the world surrounding him.
The SPIRIT which was breathed into him is the means by which man relates to God (Who is Spirit).
The SOUL of man is composed of the MIND, WILL and EMOTIONS. It is by the soul that man is conscious. By this consciousness he is aware of himself.