To put it another way, look at the many people Jesus healed in scripture. I believe physical healing is just a picture of salvation.
Matt 9:27 And when Jesus departed thence, two blind men followed him, crying, and saying, Thou Son of David, have mercy on us.
28 And when he was come into the house, the blind men came to him: and Jesus saith unto them, Believe ye that I am able to do this? They said unto him, Yea, Lord.
29 Then touched he their eyes, saying, According to your faith be it unto you.
Now, you don't think for one second that these blind men believed they had any power to heal themselves do you?
No, but they had heard of Jesus healing many people and believed he could heal them. Their faith in Jesus is actually giving all credit to him for his power and ability.
At the same time, when you read of these healings, the people almost always came to Jesus. In the vast majority of cases he didn't approach people for healing, they approached him.
Matt 21: 14 And the blind and the lame came to him in the temple; and he healed them.
This is really an incredible verse when you think about it. It would seem almost impossible for the blind and lame to come to Jesus, but they figured out a way to get there. Perhaps they asked someone to guide them, perhaps they asked someone to carry them, but they had heard Jesus healed people and they believed he would heal them too if they could just find a way to get to him and ask him. And they were correct, Jesus did heal them.
And this shows that it is not wrong for a man to participate in his salvation, in fact, it is a sin if he does not.
Matt 11:28 Come unto me, all ye that labour and are heavy laden, and I will give you rest.
Jesus said come unto me, so how could it be wrong to come unto him? It can't. The scriptures actually say the opposite, if we refuse to come to Christ he will not give us life.
John 5:40 And ye will not come to me, that ye might have life.
Calvinists and Doctrines of Gracers can say all they want that it is wrong for a man to come to Christ, I don't care. I choose to believe what Jesus said. Jesus is not going to condemn a man for obeying his very commandments.