The lord has given many valuable life arts to the people through the SIDDHARS. They include YOGA, MEDICINE, MARTIAL ARTS, PSYCHOLOGY etc… they are totally 64. All the life philosophies are included in this 64 arts. Each of them has many literatures. All the literatures are written by the SIDDHARS. But they are written in PARIBASHA. Ordinary people could not understand them. So some people join to the GURUKULAM as SISHYAS in which the SIDDHARS taught them about the arts. All of them are not master in all subjects. So whatever they had learnt, they wrote them on olai chuvadis as literatures and named them as SASTHRAS . Only the collection of all those literatures as a whole can give an insight to deal with the 64 arts, so called Varmaniam.