I challenge the assertion that mindfulness "originated" in Buddhism.
Buddhism seems to get all the credit ( or with you guys, all the blame).
Do a Bible word search with "watch" , "wait", "alert", "sober"
Nepsis
Nepsis - Wikipedia
Colossians 4:2
Devote yourselves to prayer, being watchful and thankful.
Psalm 5:3 O Lord, in the morning You will hear my voice; in the morning I will direct my prayer to You, and I will watch expectantly.
Matthew 26:38 Then He said to them, “My soul is very sorrowful, even to death. Wait here, and keep watch with Me.”
Matthew 26:41 41 Watch and pray that you enter not into temptation. The spirit indeed is willing, but the flesh is weak.”
2 John 1:8 Watch yourselves, that you do not lose what we have accomplished, but that you may receive a full reward
Or wait
Psalm 37:7 Rest in the Lord, and wait patiently for Him;
Psalm 37:34 Wait for the Lord and keep His way, And He will exalt you to inherit the land;
Psalm 59:9 O my strength, I will wait on You; for God is my refuge.
Psalm 62:5 My soul, wait silently for God, for my hope is from Him.
Proverbs 4:23 Watch over your heart with all diligence, For from it flow the springs of life.
Psalm 25:5 Lead me in Your truth and teach me, For You are the God of my salvation; For You I wait all the day.
Psalm 25:21 Let integrity and uprightness preserve me, For I wait for You
Psalm 27:14 Wait for the Lord; Be strong and let your heart take courage; Yes, wait for the Lord.
Matthew 24:42
“Therefore keep watch, because you do not know on what day your Lord will come.
Mark 8:15
“Be careful,” Jesus warned them. “Watch out for the yeast of the Pharisees and that of Herod.”
Mark 13:37
What I say to you, I say to everyone: ‘Watch!’”
Luke 21:36
Be always on the watch, and pray that you may be able to escape all that is about to happen, and that you may be able to stand before the Son of Man.”
1 Peter 1:13
Therefore, with minds that are alert (gird up the loins of your mind) and fully sober, set your hope on the grace to be brought to you when Jesus Christ is revealed at his coming.
1 Peter 4:7
The end of all things is near. Therefore be alert and of sober mind so that you may pray.
1 Peter 5:8
Be alert and of sober mind. Your enemy the devil prowls around like a roaring lion looking for someone to devour.