Mortis found himself in the body of a mortal bird. The mortal bird was simply sitting on a tree, looking at five different eggs on the ground in the middle of a forest.
For a bit, Mortis had to get used to these new sensations. Not being able to control his own perception felt strange and alien. It was like he was only a spectator to someone else's actions. He had no control over anything.
After a while, Mortis saw a grey snake come out of one of the eggs, and Mortis saw the snake how the bird saw it.
Not food.
Possible danger.
These were the only two things the bird thought of the snake.
After a while, the newborn snake simply moved away and crawled into the thicket of the forest.
That's when Mortis' perspective changed to another animal.
Mortis had already known what would wait for him thanks to Gravis' experiences in Samsara, but it felt different than Mortis had expected.