He blushed to see his Countrymen the Dupes of deceptions so ridiculous, and only wished for an opportunity to free them from their monkish fetters.

That opportunity, so long desired in vain, was at length presented to him.

He resolved not to let it slip, but to set before the People in glaring colours how enormous were the abuses but too frequently practised in Monasteries, and how unjustly public esteem was bestowed indiscriminately upon all who wore a religious habit.

He longed for the moment destined to unmask the Hypocrites, and convince his Countrymen that a sanctified exterior does not always hide a virtuous heart.
The service lasted, till Midnight was announced by the Convent Bell.
That sound being heard, the Music ceased: The voices died away softly, and soon after the lights disappeared from the Chapel windows.
Lorenzo's heart beat high, when He found the execution of his plan to be at hand.

From the natural superstition of the People He had prepared himself for some resistance.