The end times, according to prophet Joel, are signified by the outpouring of the Holy Spirit. This happens today. The Holy Spirit is like a heavenly fire, like a branding iron. The water of baptism is like a separation outside of the body, separating it from the world around. The Holy Spirit is heaven entering within, like a brand burns into the flesh from the outside going inwards, changing us as it goes. It is not hindered by our flesh, but burns right through it. The Holy Spirit brings heaven inside us. As heaven becomes something within, we become something in heaven.
