The lion stands for majesty, strength and courage.
It can also represent the ego and the passions associated with it.
If we are struggling with the lion there should be a successful development as long as we are not overpowered, or the lion killed.
A man-eating lion shows that an aspect of our personality has slipped out of alignment, putting both us and our surroundings at risk.
A lion lying with a lamb shows there is a union, or compatibility of opposites; instinct and spirit going hand in hand.