I prefer to use "sacred" and "holy" synonymously and relate them to our authentic state. We all are sacred (special) and holy (whole) beings in a continuous ebb and flow. The English word "holy" dates back to the 11th century with the Old English word halig, an adjective derived from hal meaning "whole" and used to mean "uninjured, sound, healthy, entire, complete." I am not too sure we are ever complete, but rather perhaps we are a truly beautiful work in process. If not this, then what is the point? To me it seems we are an ever expanding and contracting process of the Divine.
What separates us from the knowing that we all are sacred, holy beings is the ego. We have contrived many stories about ourselves, few of which have anything to do with the truth of who we are. We must trust our lives enough to have the courage to let go of our old stories to allow the truth to emerge.
Letting go of our stories means we will feel loss. The loss of the lies about ourselves must occur to enable our connection back to our sacred state. When we begin to touch into our truth, the old stories melt away. We experience this melting as a "death" of sorts and our "grief reflex" engages.
At this point, we may go into a healthy grief process, or we may feel fear and stop ourselves. In order to experience a healthy relationship with loss and letting go, we need to be able to be open to feeling our grief. That's a difficult one for most people, yet it is an important ability to foster in our enlightening process.
Make grief your friend and ally. Hone your ability to grieve well. Trust not fear is what is needed to forge ahead.