Inspiration

Feeling the need to prove his words, Samuel said "I'll be going back to cultivate now. Unless it's a pressing matter, please do not disturb me"

No person has ever held his head higher and chest more pushed out than Samuel as he said this sentence. Almost as if a peacock, he strutted down towards his cabin, leaving the awed trio on the deck. After a little time passed, Merling turned toward Quinn and Lukas.

"You should both learn from his example. Forge your own cultivation heart. Now, go and cultivate"

"Yes, uncle Merling"

Soon everyone was in their own rooms cultivating, including Merling. How could he allow that airhead fool to surpass him in drive. No way!

After Samuel returned to his room, he flipped the bed over and put the mattress back on again, before laying down. 

"Why would anyone sit to cultivate, when you can lie down? Hmmm, since I can already control whether I want to enter my time sphere, I think I should focus on cultivating this time. There is no need for a cultivation technique at this stage seeing as it's just gathering qi in your talent to let it grow. But mine is a special case. Since my talent resides in my soul, the spiritual qi needs to enter the soul, before being guided into the time sphere. However, I can't control my soul, making this method impossible. Hmm, I think if I use the method of entering the time sphere on the energy it should work the same way. Alright, let's get to it"

Samuel during his two weeks, amplified by 10,000 times, or in other words approximately 400 years spent inside the time sphere, finally managed to create the technique to allow him to enter and exit freely. Yes, freely. Takes nothing but an instant for him to enter! Anyway, in the process of creating this method, he had to locate where his talent was located, or rather where in his soul it was located. Turns out there were a bunch of obscure runes, covering the entirety of his soul, with only the rune on the Yin Tang acupoint being relatively clear. Inside of which the time sphere was located. Correspondingly the entrance to the time sphere was also in the Yin Tang acupoint on his physical body. So what he needed to do was gather the spiritual qi into this point, like he did with his mind force, and focus greatly before uttering the chant 'gowla' to allow it to enter his time sphere. It should be able to do the rest itself. 

You might be asking yourself how it took him almost 400 years to create this technique, and the answer is because Samuel did it in an incredibly tedious way. He found where the time sphere was located, and that it would require some form of either comprehension or chant to allow him to enter and exit, within a month. However, since he didn't know the chant, and didn't know how to gain this comprehension, he decided to brute force it. Almost like how one could brute force a lock. For 390 years he sat there, uttering different noises that could potentially work as a chant, before finally finding the correct one, 'gowla'.

He got to trying immediately. Soon, in record time, he managed to make some spiritual qi enter his time sphere. As a response he could feel a feeble and passive enhancement of his body, and its connection to spiritual qi. 

"It worked! Nice! Now all i need to do is continue to gather energy like this"

And so he did.