The soul brings on earth an accommodation for its mind, already prepared in a very negative state, from the world of the jinns that is the plane it gets its accommodation from. It gets a body after coming on earth, but the accommodation is filled later on, after the soul's awakening on the earth plane; it is here that the soul collects everything. For instance there may be one child which listens attentively to music, while another runs away from it; this means that the latter has not got the mold in which music is engraved. It will learn to appreciate music later, but with the first child the mold was already made, and the music it hears will readily fit into that mold.