I've been very preoccupied with how a Christian should live and what right and wrong is.
I'm worshipping God in truth, to the best of my abilities. But am I worshipping Him in spirit?
Jesus talks about being born of the Spirit and thus needing to be spirit in order to reach the Kingdom of God, at the start of John 3. Other places like 1 Corinthians 3 talk about spiritual sight, spiritual distinguishing of things.
It might be easier to look at worshipping in flesh and comparing that with spirit, since spirit is harder to deal with in a fleshly world. This world system looks for "what's in it for me". It looks for its own pleasure; it doesn't look for the pleasure of God Who so richly deserves it. Flesh looks for itself. Spirit looks for others. Flesh looks for enjoyment. Spirit looks for good. Flesh looks for consensus. Spirit looks to redeem. Flesh looks for acceptibility. Spirit looks for truth.
But if you are led by the Spirit, you are not under the law. Now the works of the flesh are evident: sexual immorality, impurity, sensuality, idolatry, sorcery, enmity, strife, jealousy, fits of anger, rivalries, dissensions, divisions, envy, drunkenness, orgies, and things like these. I warn you, as I warned you before, that those who do such things will not inherit the kingdom of God. But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control; against such things there is no law. And those who belong to Christ Jesus have crucified the flesh with its passions and desires. If we live by the Spirit, let us also walk by the Spirit. Let us not become conceited, provoking one another, envying one another. Gal 5:19-26