There is another point which is most wonderful about the voice: that once you have worked with the voice and have cultivated it, deepened it, widened it, and it has become invigorated, and then you have left it, you may leave it for months and years, and the voice may take a different shape and a different appearance, but at the same time what you have once developed remains with you somewhere. It is just like a kind of deposit kept in a bank. You do not know of it, you have forgotten it perhaps, yet it is there. The day when you will touch it again, it will come back in the same way and it will take very little to complete it.