Sutra 43
Self-discipline burns away impurities and kindles the sparks of divinity.
Our human nature is to sin. It takes great discipline not to sin. There is only one man that has lived his whole life without ever sinning, that man is Jesus. Everyone else has sinned to one degree or another. Yoga is a great way to train ourselves to be disciplined in action, thought, and deed. Learning how to not lose focus on God, how not to judge, hate, or react to each other in any way other than being loving and full of humility.
Romans 8 13-17
For if you live according to the sinful nature, you will die, but if by the spirit you put to death the misdeeds of the body, you will live because those who are led by the Spirit of God are the sons of God. For you did not receive the spirit that makes you a slave again to fear but you received the Spirit of sonship and by him, we cry “Abba” father The Spirit himself testifies with our spirit that we are God’s children. Now if we are children, then we are heirs – heirs of God and co-heirs with Christ. If indeed we share in his sufferings in order that we may also share in his glory.
Self-discipline is very important as practicing Christians. It is vital to being a son and daughter in the Lord. It also is vital in being like Christ. So I believe that this sutra and the Bible agree with each other.