We swallow in what we need and spit out what doesn't serve.

Snake feed on egg.

I seen a video about about animals in the wild. One of the animals they showed was a snake.

The snake was a very slender snake and not very long, approximately a little bit over a foot long. The snake open it's its mouth and slowly began taking this whole egg into it's body amazingly without crushing it while taking it in. The snakes body began to change shape as the snake digested the egg. Then the video showed the snake regurgitation the shell of the egg.

Rather we know it or not or like to admit it or not we are just like this snake. 

We swallow in what we need and spit out what doesn't serve us and guess what there's absolutely nothing wrong with that.