As a kid, one of the most sing-able hymns we sang was "I am Bound for the Promised Land." My little voice could be heard sometimes above all of the adults. Especially when we got to the part where people shouted "Hallelujah."
As a kid, I saw "the Promised Land" as being literally Heaven. Not anymore. I believe it is here and now. We get there by moving forward or resisting the temptation to go backwards. We can be in it one day and not the next; but with practice, we dwell in the Promised Land and create it in our homes more and more often.
We only experience it when we are at peace. Not because we live in a perfect world, but because we have a sense of peace in spite of the imperfect world. That's a state of spiritual health that comes when we get in touch with the divine power that is available in each of us. And through our relationships as we connect with other people when they are also truly in a state of peace.