If we don't pray we will enter into temptation because our flesh is weak. Jude said, Build yourselves up praying in the Holy Spirit. When you pray in tongues, and with the understanding for an hour, watching in faith, you build yourself up, you strengthen your inner man and you enter into warfare with the powers of darkness that are hindering you and working to destroy you and your loved ones. We have the victory in Jesus but we must fight the good fight of faith and overcome them. Also if we sow to the flesh we will reap corruption; Gal 6:8, but if we sow to the Spirit we shall of the Spirit reap life everlasting. Our flesh wars against the Spirit. That's why we must put it to death every day through the Spirit. Deny your fleshly desires to entertain yourself, take up your cross, the will of the Father for you in the Gospel, and follow Jesus. He leads us by the Holy Spirit to do the will of the Father, to do His Word. You cannot possibly do this without being fully baptized in the Holy Spirit. Jesus said, Act 1:5 For John truly baptized with water; but ye shall be baptized with the Holy Ghost not many days hence.
Act 1:8 But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth.