Lions can be found in the savannah-like part of The Natural World. There are always two of them roaming the plains.
Approaching them will cause one of two things: the player will be pushed back (which can lead to the dream ending abruptly) or the lion will attack the player, ending the dream.
Standing far enough away from the lions will eventually cause them to merge with each other; to take up the same space.
When the player touches the lion, they don't get linked, but instead causes a trigger.