According to spiritual teachings, the educational program of fate changes every seven years of our lives: every seven years, the laws of Nature encourage a person to develop a new, certain good quality in himself. To live in the same stream with life means to learn the lessons sent to us in time. Pupils in schools and universities look at the class schedule in order to prepare well for them in advance. It is also useful for every person to know in advance what at a certain period the Most High teaches and will teach us.