We know that we have chosen Heaven when we feel peace. And we can make this choice at any instant. When we invite the Holy Spirit to join us, we are once again attuned with God.
A Course in Miracles says that we are all One. Indeed, this is the definition of Heaven: “. . .not a place nor a condition. It is merely an awareness of perfect oneness, and the knowledge that there is nothing else; nothing outside this oneness, and nothing else within.” (T-18.VI.1:5-6) If this be true, we are all part of each other and of God. We cannot attack a separate being, because no separate being exists. The most that we, or an illusion of Self, can attack is an illusion of another. And then conflict ensues, creating fear for ourselves. This is one of the dynamics of the ego, and sometimes it seems that the more we study such meaninglessness, the more powerful it becomes. That is because the very process of studying the ego affirms its importance and makes it real to ourselves.
We can make much, but what results is still only illusion, and can never be truly experienced as real, though we can imagine it to be real.
To live an illusion is madness, a madness that the remembrance of God can shine away. In quiet and in peace can we be led to accept God instead, and we thereby leave conflict, and the fear that it brings, far behind. In forgiveness of ourselves and others do we find that quiet and peace.
There is no other way.