Gives a nurture destiny at every Culti lvl which increases prosperity and amount of backup disciples by 10 and 5 respectively per month. May have to lower the amount of backup disciples as at current cap culti lvl, you would be getting 40xday, 480 a year. As for Prosperity it doesn't really matter, as the numbers are already high anyway, 960 a year helps but isn't game changing. (The max tier was 8 when I wrote that, you can make the new math for urself :P)