A comprehensive literature survey is made on the subject of human birth according to yoga text and spiritual texts. We have reviewed the ancient text and scriptures for the concept of human birth. The soul returns to the mundane life on the exhaustion of the meritorious deeds with residual karma gains a new body suited to it from a womb. As said in Shrimad bhagawatam under the supervision of the Supreme Lord and according to the result of his work, the living entity, the soul, is made to enter into the womb of a woman through the particle of male semen to assume a particular type of body कर् मणा दै व ने त् रे ण जन् तु दे ह पपत् तये े karmaṇā daiva netreṇa jantudeha papattaye SB3.33.1. After being connected with a progenitor the soul with the residual karma enters a womb and gains a body suited to the experience of its karma. The birth is high or low, according to the nature of residual karma. An explanation of Karma theory for human birth is also given with the yoga dimension. After the study of the relevant literatures, it is formed that it is the law of karma which decides an individual's birth.