'Always On My Mind' is a great song by Willie Nelson but it is a sad song. 'Always On Your Mind' is a rewrite of the lyrics using Willie's great melody.
It has an element of regret and repentance for our failure to reciprocate the Love of Christ Jesus for us, but it also affirms the constant love of Christ for us in His attention to every detail of our lives.
At the end of the song I hope we are all drawn into thanksgiving, praise and glory to Him who has given Himself in death for us and given Himself in life to us by His indwelling Holy Spirit.