To follow his will and ultimately reach the eternal goal of heaven.

It means that someone is calling you.Some beloved of yours is in the heaven and that person wants you. He badly misses you out there.

The men who did this thought it was their religious calling and thought they will go to heaven when they kill or do this hijacking cause that what they belived in their religion of worship

That already happened 2000 years ago and they rejected him and his message that He and He alone was the way to the Father in Heaven.

Never happened, she was a mortal woman who had a special calling , the bottom line she was a sinner like the rest of us and had 6 other children after jesus