I had a dream of my dog and most of my family members. I had a dream of my dog and her "identical twin" (I only have one dog no others) and we were by the pool. Then I go through the open wooden fence in my backyard through grassland and a creek. Up ahead, I saw a huge lion. I screamed "There is a big lion!" Everyone ran inside the house and I got into the garage. Then I heard it growling and then it was gone. I then said "Guys, the lion's gone!" But there was no answer. Just then, I realized that everyone who went into the house was dead. I started to fear then the lion started to charge at me and then I woke up and at the same time I felt that huge intensity in my chest where my heart was beating really fast. What could this mean?