The death of the body does not mean the death of the mind. Where there is deep love there can be interludes of mental communion between the so-called dead and the living and there may be meetings from time to time when each is conscious of the other. These meetings take place in a reverie-like state. But some practice in meditative stilling of the mind is necessary, as any emotional excitement would prevent this communion. Nature, however, does not permit a continuous relation, only an intermittent one. For spirits have their own higher destinies to work out.
-- Notebooks Category 9: From Birth to Rebirth > Chapter 1: Death, Dying, and Immortality > # 154