Clearly, those few lights could have been brought by the gravekeeper's sworn enemy—the tomb raiders.
They take pleasure in digging up the graves of the buried and stealing the accompanying burial items.
Such behavior is despicable.
Once caught, they could even be beheaded on the spot!
Zorro's instinct made Aaron want to risk going out to stop those tomb raiders, but he quickly suppressed it.
'I'm so weak now, I can't even beat a child... what makes me think I could stop a tomb raider?' he thought.
'Even if I could stop them, the cost is too high. I can't bear it...'
'It's better to just wait until they are satisfied and leave...'
'Then I can also restore the graves, that way I can at least keep it hidden for a long time, perhaps even a lifetime!'
Aaron naturally chose the most cunning way to respond.
After all, if he died, his reduced being would die as well!
Even as an avatar, it's good to be alive.