"Hyooooooo" goku extended his hands into the air. He then was able to draw out energy from the air into his body. he then concentrated all of the energy that he could gather from this small little planet on his hands.
"Okay. I am set," he replied.
"Then let's begin." King Kai said as he lifted a big brick with his psychic abilities.
"Catch this brick at a super speed," he told goku.
"Hya" he then throw the brick in Goku's direction at a very fast speed.
Goku wielded the energy in his hand and was able to use the energy as he uses it to destroy the brick which was coming to him at super speed.
"You did it. Splendid son goku. I never thought that you will be able to master the spirit bomb so quickly." King kai said.
"I worked hard," goku replied.
"Remember that the spirit bomb is a martial arts discipline that allows you to draw energy from grass and Trees. People and animals from inanimate objects and even the atmosphere. Then all the energy is concentrated and released. If this is the power that you can draw from one small planet. Then imagine what you can do with the spirit bomb formed from the earth." king kai said.
"So please. Don't use it if you can. If you have to use it only one time as a last resort," he said.
"No problem," goku replied.
"King kai," Kai called out.
"Could I go and see the warriors that are called the Saiyans?" Kai said as he kneeled.
As someone from a warrior race, he was interested when he found out that there were not one but two warriors that belongs to the same race as him and can be compared to him in power.
"How many times do I have to tell you not to kneel when you ask me for something?" King Kai said as he pulled kai up.
"Please. I don't think I will ever see the Supreme kai so at least I wanted to see another fighter in our universe." Kai said.
"You can come and live with me if you want." goku said.
"Fine. You can go." King kai said.
"But on one condition," he added.
"You have to wish me a bigger planet with the dragon balls that goku was telling me so much about." King kai stated.
"But are they going to be used for bringing me back?" goku questioned.
"Fine. But you have to wish me a planet after that." king kai said.
"Then thank you so much for everything that you have done for me," Kai said as he bowed down to king kai for the last time.
"Fine. Now talk to your friends to bring you back to life." King kai told goku.
"Tell them. How?" goku questioned.
"Put one hand on my back and reach them out with your mind." king kai said.
"For real. Like this." goku said as he put one of his hands-on king kai and reached out to master roshi.
Turtle Hermit. Can you hear me? Goku asked.
I am in the underworld I am talking to you through your mind. Have you found the dragon balls? If you have can you summon the dragon to bring me back to life?
Then he cut off the communication as he put his hand away from king kai's back.
"Do you think they got your message?" kai asked.
"I think they do." goku said as he realized that the holo on his head is gone.
"Now get going. The Saiyans are going to arrive the next day." king kai said.
"Arent you going to take me back?" goku asked.
"How?" king kai asked.
"I don't know can't you just fly or teleport me back there," goku asked.
"I am sorry but you have to go by the road." king kai said.
"But don't worry at your current speed You will make it back in two days," he said.
"But didn't you say they are arriving tomorrow? It will still be one day late." goku said.
"Ok, so I made a mistake. I have already communicated with kami to come and pick you up so get going" king kai said as kai and goku jumped down to the snake road and started to fly at a light speed.