Heaven is a state of mind, not a location, since Spirit is everywhere and in everything. You can begin making a conscious decision to look for the unfolding of Spirit in everything and everyone that you encounter.
I personally do this by making an effort to look upon my world as if I were observing it through lenses that filter out the form and all of the material aspects of what I’m seeing, and I can only view the spiritual energy that allows what I’m noticing to exist. Try putting on these imaginary magical lenses and see how different everything appears.
I now see spiritual energy in everyone I encounter. When I’m tempted to judge anyone, I remind myself to view them through my special lenses. When I can do so, all negative judgment dissolves. I feel more peaceful knowing that I’m not just this body that I’m destined to discard. I also feel the life-giving Spirit within me on a daily basis, and it’s exhilarating!