Reincarnation Prayer Options

I have no idea where this should go if anywhere. I was thinking in an off chance, does anyone know of a prayer to be said over a family member that has passed, possibly in Sanskrit. I guessing it is to ease the person into the new life or guarantee a new life??? My husbands grandmother(before she died) gave this paper to my mother-in-law for me to read over a particular aunt. She died this week but since my mother-in-law considers me to be the spawn of satin (ok she could be close on that) she claims she doesn't know anything about it. I am pretty sure she took care of it herself, still I would like to know about it if anyone has a clue.

His grandmother once said that when this aunt dies she will be a star. This makes me think it is her last life; it was a difficult and unfair life from what I could see. I guess I will always be a little confused about it but I wish her everything wonderful.