I sometimes have a corresponding feeling of aloofness in my waking life. I am not anything that takes place here, not even this body or these thoughts and emotions. I am separate from everything that happens. Waking life is more coherent, continuous etc. than typical lucid dreams, but there can be a similar sense of detachment in both.
What is it then that I am while detached? I would say that ultimately I am not an event, process, structure or any other thing at all but silence and emptiness. All thoughts, images and sounds are born in this emptiness and then pass away by themselves.
A certain feeling of unconcern follows from this. No matter which way things go, nothing bad can ever happen to me. I can open myself to precarious experiences without any risks. A higher meaning of life may lie in this dimension of invulnerable emptiness instead of anything that can occur in life, within life as it were.