Is my daughter seeing ghosts??

She is 2 years old, she sits in the corner of our living room and stares up at the corner of the ceiling and speaks another language (me and my husband don't know what language it is). When we ask her who shes talking to and what shes talking about she says she is talking to her friends from her past life who are there to protect her. She says there are 2 boys and a girl. She won't tell me what they talk about she always just says "you wouldn't understand, its from my past life". What 2 year old says this?? Do you think she's actually seeing ghosts?