No question about it, ministry can be downright hard sometimes. It's a battlefield, we're warned about it. Jesus said about Paul in Acts 9:15-16:
But the Lord said to him, “Go, for he is a chosen instrument of mine to carry my name before the Gentiles and kings and the children of Israel. For I will show him how much he must suffer for the sake of my name.”
We choose to go into it with eyes wide open and hearts unshielded, completely and utterly unarmed except with the Word of God. There can be times when it feels like all you're doing is hitting a brick wall, sometimes for days or even months and years. Walking in blind faith, feeling your way only to the next step and totally trusting in the Lord, because if He's not in it, you don't want it. Then you walk past a table of women at Bible study and a snippet of conversation floats to your ears.
"This is changing my life."
And I want to fall to my knees and weep with joy, with praises to God for what He has worked in a heart. It really doesn't get better than that, this side of Heaven. It is worth the tearstained toil of a million days just to hear that even one time. To see the Kingdom of God invading this natural, fallen world and overcoming in victory is what we are ALL about. It's the focus of every moment of ministry, it's woven into the fabric of who we are as a body of Christ. It's the all-in, sold-out, nothing-but-Jesus, living-in-victory, power-of-the-Holy-Spirit reality...that is OUR normal Christian life.
Praise the Lord for His good works! He is always faithful, always loving, always working.