Echidnas are an egg laying mammal, sharing this feature with only with another Australian animal, the platypus. It eats ants and termites, uses its spines as protection and typically a solitary animal.
Just as the echidna has spines on its back as protection, it teaches to watch ones own back in situations which become uncomfortable or with a future that is unknown.
To go out of the comfort zone is at times required for one reason or another, the echidna promotes to do so as this animal sees it as a way to grow.
Paying attention to the smaller things in life is what echidna teaches to do, as looking at the larger picture can give an idea looking at finer details gives more details. Doing so can bring benefits in some shape or form.