Do we fear happiness?

"What then are we afraid of? Can we have too much of God?
Is it a misfortune to be freed from the heavy yoke of the
world, and to bear the light burden of Jesus Christ? Do we
fear to be too happy, too much delivered from ourselves, from
the caprices of our pride, the violence of our passions, and
the tyranny of this deceitful world?"
... François Fénelon (1651-1715)