Jesus was watchful in the work that Jehovah assigned him to do. There may be some jobs that allow for the worker’s mind to wander without serious consequences.
(‏ مت ٦ :‏ ​ ٦ ،‏ ٧‏ )‏ فَصَلَوَاتٌ كَهذِهِ تَجْعَلُنَا أَقْرَبَ إِلَى يَهْوَهَ بِحَيْثُ نَنْدَفِعُ إِلَى بَذْلِ ٱلْمُسْتَطَاعِ كَيْ نُوَطِّدَ عَلَاقَتَنَا بِهِ وَنَتَفَادَى فِعْلَ أَيِّ شَيْءٍ قَدْ يُزَعْزِعُهَا .‏ —‏ مز ٢٥ :‏ ١٤‏ .‏