like a well-armed man who voluntarily lets a fly bite him to death.
For man has many great and strong weapons, wherewith he may well and
manfully withstand the evil spirit--the holy faith, the blessed
sacrament, the holy word of God, the model and example of all good
and holy men, the prayers of holy Church, and other great supports
against the power of the evil spirit, whose power is much less than
that of a fly against a great bear. If a man will manfully and
boldly withstand the evil spirit, the evil one can gain no advantage
against his free will.

Turn, therefore, manfully and earnestly from your sins, and watch
diligently and earnestly; for I tell you of a truth, that when you
have come to the next world, if you have not withstood the evil
spirit, and if you are found there without repentance and sorrow,
you will be a mockery to all the devils and to yourself, and you
will be eternally punished and tormented. And it will then be a
greater woe to you, that you have followed the evil spirit, than all
the external pains that you must endure eternally for your sins.

Thirdly, a man should diligently attend to his inner Ground, that
there shall be nothing in it save God alone, and His eternal glory.
For alas! there are many men, both lay and clerical, who live
falsely beneath a fair show, and imagine that they can deceive the
everlasting God. No, in truth, thou deceivest thyself, and losest
the day of grace, and the favour of God, and makest thyself guilty
towards God, in that He gives the evil spirits power over thee, so
that thou canst do no good work. Therefore, watch while it is day,
that the hour of darkness and God's disfavour may not overtake thee,
and take heed that in thy inner ground God may dwell, and nought
besides. (75)