I think past can't be altered, it can only be reviewed. what is happening is the removal of the blockage which was created in the past in the present.
Can't say I'm completely sure though.. it would be interesting if altering past was possible. (come to think of it, the higher self does the exact same thing)
Can't say I'm completely sure though.. it would be interesting if altering past was possible. (come to think of it, the higher self does the exact same thing)