Picture the Lord praying on the top of the mountain, praying, and drawing strength from the Divine love within Himself. On that mountain, and from His Divine love, He is far above the disturbances that we undergo. When He comes down, and moves across the surface of our minds, He comes to comfort us, and to bring us peace. If we believe in the Lord, and are sincerely trying to live good lives, and to learn the truths of His Word, then we should know that we do have peace within ourselves. But peace is not the same as tranquillity.
Peace is of the internal man.
It is above our consciousness. Strictly speaking, we do not feel peace. What we can feel is tranquillity, which flows from the peace within, into our external, conscious mind. It is because we have so many false notions within our minds, false notions into which the hells flow. With the Lord coming ever closer to our minds, these falsities are threatened.