What is the lion motif?

Throughout the novel, the lion's head is a particularly strong Motif that recurs a great deal. The lion's head appears to guide any of the characters who are about to do, or have just done, the wrong thing; for example, when Lucy wants to read the spell aloud that she has not been charged with finding, she sees a lion's face appear above it on the page which makes her think better of it. Similarly, when Caspian has decided to leave Narnia and abdicate, the lion's head on the wall of his cabin comes to life and speaks to him. The lion is a Motif that always arises when a moral dilemma is impending.