The holy spirit within us is the same divine power that called into existence the universe. Why can't WE call it into existence? No need to. It's already present. We need only acknowledge it and—here's the breakthrough advice—PICTURE it.
Picture the spirit of God as a powerful, creative force inside you that radiates outward and surrounds you in the form of a perfect cube. Why a cube? Because the holy of holies was a perfect cube that famously housed the settled glory of God. This same glory now makes its home in you—except there's more of it and it follows you wherever you go. You can't turn around and walk away from it, as the high priests did on the Day of Atonement.
And why would you want to?