Romans 8
12 Therefore, brothers and sisters we have an obligation – but not in the flesh, to live according to it. 13 For if you live according to the flesh you will die; but if by the Spirit you put to death the misdeeds of the body, you will live.”

New King James:
12 Therefore, brethren, we are debtors—not to the flesh, to live according to the flesh. 13 For if you live according to the flesh you will die; but if by the Spirit you put to death the deeds of the body, you will live.
This seems like a black and white statement. It is almost like you kill the desires of the flesh to seek after anything spiritual in connection with the Lord. However, the Lord in return will give you the desires of your heart.
It reminds me of Matthew 6. It says anything the Gentiles seek after (worldly stuff) the Lord knows you need. HE wants to be the one to give it to you !
Matthew 6
32 (For after all these things do the Gentiles seek:) for your heavenly Father knoweth that ye have need of all these things.

33 But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.