Content
In contrast to the Pyramid Texts which focus on the celestial realm, the coffin texts emphasize the subterranean elements of the afterlife ruled by the deity Osiris, in a place called the Duat. An Osirian afterlife is offered to everyone, and the deceased is even referred to as "the Osiris-[name]." This subterranean realm is described as being filled with threatening beings, traps, and snares with which the deceased must contend. The spells in the Coffin Texts allow the deceased to protect themselves against these dangers and "dying a second death".
A new theme recorded in the coffin texts is the notion that all people will be judged by Osiris and his council according to their deeds in life. The texts allude to the use of a balance, which became the pivotal moment of judgment in the later Book of the Dead. The texts address common fears of the living, such as having to do manual labor, with spells to allow the deceased to avoid these unpleasant tasks.
They combine ritual actions intended as protection, expressions of aspiration for a blessed existence after death and of the transformations and transmigrations of the ba and akh and so on. In addition there are descriptions of the land of the dead, its landscape and inhabitants. These include the Sekhet Hotep (Field of offerings or peace), the paths of Rostau and the abode of Osiris.
Examples

Coffin text 1130 is a speech by the sun god Ra, who says:
Hail in peace! I repeat to you the good deeds which my own heart did for me from within the serpent-coil, in order to silence strife ...
I made the four winds, that every man might breathe in his time ...
I made the great inundation, that the humble might benefit by it like the great ...
I made every man like his fellow; and I did not command that they do wrong. It is their hearts which disobey what I have said ...
I have created the gods from my sweat, and the people from the tears of my eye.

Coffin text 1031 is spoken by the deceased, who replies:
I shall sail rightly in my bark, I am lord of eternity in the crossing of the sky.
I am not afraid in my limbs, for Hu and Hike overthrow for me that evil being.
I shall see light-land, I shall dwell in it ...
Make way for me, that I may see Nun and Amun! For I am that Akh who passes by the guards ...
I am equipped and effective in opening his portal!
As for any person who knows this spell, he will be like Re in the eastern sky, like Osiris in the netherworld. He will go down to the circle of fire, without the flame touching him ever!