God who tells in our dream

After I became a Christian, I don’t know why, but I don’t have a dream so much.
I remember one of the dreams in 1994. I was driving a car and a big container was driving in front of me. The container was so slow and sometimes stops, so I tried to hit the horn because I was in a hurry. I looked in front of the container and I saw Jesus with the cross.
I’m serving God in Japan and sometimes I don’t understand why people postpone their salvations. Why do people resist to be changed? Why is a step of churches in Japan so slow? I can say clearly that God doesn’t bereave people’s freedom. Time is in His hands and God’s love will not change. Of course, all of dreams are not from God but He tells us in a dream when He needs us.
Genesis 40:8