“Enq: There is something in your argument. I confess to having never seen it in this light.
Theo: Just so, and one must be selfish to the core and utterly devoid of the sense of retributive justice, to have ever imagined such a thing. We are with those whom we have lost in material form, and far, far nearer to them now, than when they were alive.
And it is not only in the fancy of the Devachanee, as some may imagine, but in reality. For pure divine love is not merely the blossom of a human heart, but has its roots in eternity.
Spiritual holy love is immortal, and Karma brings sooner or later all those who loved each other with such a spiritual affection to incarnate once more in the same family group.
Again we say that love beyond the grave, illusion though you may call it, has a magic and divine potency which reacts on the living.
A mother’s Ego filled with love for the imaginary children it sees near itself, living a life of happiness, as real to it as when on earth – that love will always be felt by the children in flesh. It will manifest in their dreams, and often in various events – in providential protections and escapes, for love is a strong shield, and is not limited by space or time.
As with this Devachanic “mother”, so with the rest of human relationships and attachments, except the purely selfish or material. Analogy will suggest to you the rest.”
H. P. Blavatsky
The Mark Of God: Understanding Your "I AM Presence" 