Seeing lion is a very common dream. To see lion is considered a good dream. In Hindu religion there is an ancient scripture known as Swapna Shastra which gives interpretation and meaning of various dreams.
The main belief is that those who see lion in dream will get protection against all kinds of enemies. If the man sees the dream he will be able to overcome difficulties in life. If a woman or girl sees the dream she will be soon taking bold decisions.
Lion in dream is also an indication that you will be traveling alone to a distant place.
When married women see lion in dream, it means that soon she will have a family get together.
Lion chasing or attacking you should be seen as warning against bad friendship and bad activities.
Those who see lion in dream should visit a Goddess Durga temple and offer prayers.