To get a rare chance is very difficult be become human being.To understand firstly rebirth and death.At the middle to realise for what do those happen that remove false views I see hear smell touch think (not real think)because at the rebirth (not exist I you she man woman male female)also death not I and my self-ism.when yogi reach teenage age that yogi have (five groups of mind and matter =khandha)Yogi have right concept corruptible matter and feeling consciousness ceased mean vedanhakhanda magga.Vedana mean nam.Nam 's vital sign is clean consciousness.At instant consciousness tranquil mind disappear mean phala wisdom.