35. It takes time for the spirit to purify itself; and the different incarnation are the alembics in the depths of which is left each time some impurity. In quitting his mortal envelope man is not instantaneously despoiled of his imperfections. That is the reason why some see no more of God after death than while living on Earth; but, in proportion as spirits become purified, they have a more distinct intuition, if they do not see God, they comprehend him better: the light is less vague. Thus, when spirits say that God forbids them to respond to this question, it is not that God appears to them, or speaks to them, in order to direct them to do, or prohibit them for doing, such and such things. No; but they feel him: they receive the emanation of his thought, as we feel in respect to spirits who envelop us in their fluid, although we do not see them.