This aspiration prayer to be reborn in Sukhavati was translated and offered by Garchen Rinpoche's translation group.  It's a powerful prayer to purify negative karma, increase merit (positive Karma), increase the likelihood that you will be born in a positive realm.  It's also a prayer I've recited when loved one's died or are dying.    Here is a link to my blog which has a link to download the prayer in PDF.