How is the love of God revealed?

What is the realising sense of the love of God?

Whatever else you may doubt, never lose hold of this—God is love. The atmosphere of the Universe is the realising sense of the love of God. 

God is love. His love fills the Universe—to us [spirits] there is no doubt about it. And we do not doubt God because of the sin and darkness where He is not seen.

I am ashamed of the poor, paltry, miserable words and metaphors with which I am now trying to give you some idea of the abounding and overwhelming sense that we have of the Love of God. That is Heaven, and when you have it Heaven is there. All is summed up in that—

God is Love, Love is God, and Heaven is the perfect realisation of that.