Jesus does not force Himself on people, He lets them choose
Luke 24:28 (ASV)
28And they drew nigh unto the village, whither they were going: and he made as though he would go further.
Revelation 3:20 (ASV)
20Behold, I stand at the door and knock: if any man hear my voice and open the door, I will come in to him, and will sup with him, and he with me.
In conversation with Piotr about how he came to Christ, Richard Wurmbrand is surprised to learn that for Piotr, it was the stark contrast between Communism's forceful indoctrination and Jesus's subtle "knock at the door of our hearts".