The way to truth lies through the destruction of the false. To destroy the false, you must question your most inveterate beliefs. Of these the idea that you are the body is the worst. With the body comes the world, with the world - God, who is supposed to have created the world and thus it starts - fears, religions, prayers, sacrifices, all sorts of systems - all to protect and support the child-man, frightened out of his wits by monsters of his own making. Realize that what you are cannot be born nor die and with the fear gone, all suffering ends.
In your world everything must have a beginning and an end. If it does not, you call it eternal. In my view, there is no such thing as beginning and end - these are all related to time. Timeless being is entirely in the now. Being and not-being alternate and their reality is momentary. The immutable Reality lies beyond space and time.
To see the unreal is wisdom. Beyond this lies the inexpressible.