When you move into worship, you move into oneness. There ceases to be a distinction between you worshipping the Source and the Source worshipping you.
At some point in this process you may discover an observer: some part of you is observing this process and is therefore to some extent outside of it. For worship to be complete the observer must relinquish its role. But how might this be done?
The part of you that is the observer is very important. It sits and watches all the events of your life and creates a story, or multiple stories, out of them. In many ways it is the glue that holds your personality self together, and to have that self fall apart can feel very frightening. If you let the observer dissolve into a sea of oneness, what remains of you?