Galatians 5:16-18, I say then: Walk in the Spirit, and you shall not fulfill the lust of the flesh. 17 For the flesh lusts against the Spirit, and the Spirit against the flesh; and these are contrary to one another, so that you do not do the things that you wish. 18 But if you are led by the Spirit, you are not under the law. (NKJV)
In this sermon. we see that walking in the Spirit is to breathe in the Spirit, it is to be in step with His breath. Some people go ahead of him and they lose their breath. They lose their synchronicity. If we want to walk in the spirit we are going to have to breathe in the Spirit, which means you are going to have to walk with Him daily. When we begin to walk with Him it is not because of obligation but rather that you want to. The very first thing you do is wake up joyfully not able to wait to breathe Him in!