what man invents, who can take apart?

durring mass, the priest said "lo que une dios, ningun hombre puede separar". and i am left with the question of how do i know what God intends and what i thought felt right; even for a moment? How are we responsible enough to know the difference? How many chances do we get? isn't it so, that those who make us uncomfortable, those who initiate selfloathing and change, are those that make us grow. and growth is a sign of spiritual change? they that push us to unbarable lengths, fear, and hate.. could they be the ones who make us evolve? and place us closer to what was completely intended?