Most of our angst is the result of believing that I (borderless and universal consciousness) am a phenomenal entity living in time and space. Moving from past to future. From birth to death.
This identification with a body mind impression is the cause of our angst as we become infected with the thorn of mortality.
As soon as we start contemplating this question, we are on our way home, on the return journey from ignorance to wisdom, from suffering to peace and happiness.
The core contemplation is to investigate whether I am a mortal body mind or consciousness and whether consciousness is limited or universal.
Your investigation will lead you to the realization of truth, the realization that you are this open aware space that is borderless and universal, inherent freedom, peace and happiness.