The flesh is at war with the spirit. The flesh seeks after the things of the world. It is selfish and seeks its own pleasure but such pleasure is not permanent. After time pleasure ceases and one must find new pleasure. Sometimes they must even seek something that is more pleasurable. When some one sows to the flesh they are actually sowing to something that is fleeting. It is perishable and will one day be gone.
Are you sowing to the flesh?