"The way of attaining Buddhahood is just like this. Though we live in the impure land, our hearts reside in the pure land of Eagle Peak. Merely seeing each other’s face would in itself be insignificant. It is the heart that is important. Someday let us meet at Eagle Peak, where Shakyamuni Buddha dwells. Namu-myoho-renge-kyo, Namu-myoho-renge-kyo."
Bottom line, when our hearts, here and now, reside in Eagle Peak, we are sure to be reborn in Eagle Peak with our teachers and loved ones before we return to this saha world to again "unfold, propagate, expound, and preach this sutra" (Lotus Sutra Chapter 14). This is Kosen Rufu.