"Jesus said, 'Wretched is the body that depends upon a body. And wretched is the soul that depends upon these two.'"
Gospel of Thomas, Logion 87
What is the second body?
"You cover yourself with light as though it were a robe. You stretch out the heavens as though they were curtains."
"Now after six days Jesus took Peter, James, and John his brother, led them up on a high mountain by themselves; 2 and He was transfigured before them. His face shone like the sun, and his garments became as white as the light. And behold, Moses and Elijah appeared to them, talking with Him."
"Not only shall they be unable to seize the perfected person, but they shall be unable (even) to see him. For if they see him, they will seize him. In no other manner will one be able to be begotten of Him in this grace, unless he is clothed in the Perfect Light and Perfect Light is upon him. [Thus clad], he shall go [forth from the world]."
Gospel of Philip.
Hymn of the Pearl from Nag Hammadi also contains a reference to the "Glorious Robe all-bespangled With sparkling splendor of colors". The hero of the story of the Hymn of the Pearl strips off the "filthy and unclean garments" he had worn in a foreign land and put back on his "glorious robe" upon returning to his father's house.
See also 2 Enoch 22:8--"And the Lord said to Michael, 'Go, and extract Enoch from his earthly clothing and anoint him with my delightful oil, and put him into the clothes of my glory."
garment of light = body of perfect light
Wretched is the garment of light that depends upon a physical body. And wretched is the soul that depends upon either the physical or ethereal body.
"The Dogma of the Trinity. The Trinity is the term employed to signify the central doctrine of the Christian religion -- the truth that in the unity of the Godhead there are Three Persons, the Father, the Son, and the Holy Spirit, these Three Persons being truly distinct one from another."
New Advent, the Catholic Encyclopedia.
"Then God said, 'Let Us make man in Our image, according to Our likeness ... .'"
"As it is above, so it is below."
Man, made in the image and likeness of God, is three in one: physical body, garment of light, and a divine element that never leaves it's heavenly home. The term "garment of light" refers to the spiritual being residing within every human being. It is one's true self and survives death of the temporal body.