What does it mean to drive a crane west to be reborn?

The author means to tell everyone that he is illiterate. Why? Because only Taoist immortals can open cranes, and open cranes to heaven. Westbound is after the death of a Buddhist. Western bliss, Buddha's collar, no crane driving the west. Samsara, samsara is what ordinary people experience after death. Samsara, come down. Three different directions. What's he trying to say? It's a dead word, so why pretend to be B.