Ghurūr: Self-deception
Al-Ghazali gave a long section of the Revival to the ways people fool themselves. When stepping in would cost time, money, or comfort, the mind supplies reasons fast, and not knowing is the cheapest one on the shelf. Some part of you saw what you saw, so the excuse has to be repeated to keep holding.
Actions are judged by intentions: the inside of a deed decides it
A saying of the Prophet holds that actions are judged by intentions. Two people can do the same thing, one to help and one to be admired, and from outside the two look identical. The same goes for what gets left undone, because a decision to stay out of something also has a motive underneath it.
Murāqaba: Living aware that God sees you
Murāqaba is the steady sense of being seen. Looking away is easy when a person is certain nobody will ever hear about it, and most small refusals happen in exactly that privacy. When the sense of being watched stays, the gap between how you act in company and how you act alone closes.
Muḥāsaba: Taking your own account
Al-Ghazali sets self-examination right beside keeping watch: going back over the day and naming what you did. Doing it yourself stings, though it costs far less than leaving the job to someone else later. The habit catches an excuse while it is still fresh, when you can still recall what you saw and what you chose instead.
Whoever does an atom's weight of good will see it: nothing falls out of the account
The Quran puts it plainly: an atom's weight of good or evil will be seen. It presses hardest on the small things, the moment you decided not to get involved, the help you meant to give and never gave. Knowing that nothing is too minor to register changes how ordinary hours feel, since none of them go unrecorded.