Final answer:
Rivka means that everyone is courageous, important, and has their own unique story or battle they have fought.
Step-by-step explanation:
When Rivka says, "We are all heroes here," she means that everyone in the group or situation is courageous, important, and has their own unique story or battle they have fought. This statement emphasizes that heroism can be found in everyday people and their actions and experiences, rather than being limited to famous or well-known individuals. Through this statement, Rivka is highlighting the strength and resilience that exists within each person.