I can only speak for myself. I was convicted by the Holy Spirit of my need for Christ and his Gospel. I had been convicted before but just brushed it off. This time the call was quite strong and I accepted Christ as my savior. I believe that I could have rejected the call again, but I didn't.
The Holy Spirit is in the world calling all to come to Christ. Some come, some reject. It is all up to us. God does not impose salvation on anyone, if he did he would be unjust.
Amen Pate.