In Lotus Lantern, we can know that the Monkey King has become a peerless master and lives in Huaguoshan every day. At this time, the Monkey King has long looked down on everything in the world, and has become honest, just reading and resting in the cave, just like becoming a stone monkey.
He is like a stone, absorbing the essence of heaven and earth, but he didn't know that the Monkey King had cultivated to the avenue and learned the most important thing in life, so he became a very, very powerful Buddha.
According to the records in The Journey to the West, the Monkey King also returned to Huaguoshan and received special permission from the Tathagata Buddha. Huaguoshan was regarded as his existence, so that he could not practice in the Western Heaven, but returned to his own Huaguoshan, set him free and let him live the life he wanted.
Perhaps the Buddha also thinks that the Monkey King is a handsome man. He can become an immortal honestly after becoming a Buddha. His cultivation and thinking must be very powerful.
In addition, the most important point is that the Buddha foresaw the future and asked the Monkey King to practice in his own Dojo. In order to prevent the bad guys from invading Lingshan, no one in the whole western Buddhist community upheld justice and restored justice, so the Buddha specially authorized the Monkey King to practice in Huaguoshan, thus leaving one of the most important members to restore order in Lingshan in the future.
Finally, the Monkey King successfully completed the tasks assigned by the Buddha, successfully rescued all the Buddha immortals, and made the Monkey King a more powerful Buddha again. Everything has a destiny, and the Monkey King's achievements are also considerable.