Let Me Try This.

Using the raw energy of creation is much akin to setting one's blood afire. Such is the essence of the Warp, of the perverse energy of Chaos that coalesces and condenses to make demons and Gods. Alongside the feeling of fire come frost and filth, between which the energies constantly circulate and mutate. It carries the chance of corruption to normal people, but to a Space Marine, it is only another challenge.

Septimus meditated in his personal alcove, the robes of a scholar adorning him on the floor, his legs crossed as per tradition. Access to his psychic abilities originally came from a practice of his people, emptying the mind and body of all worries and thoughts, and within that emptiness a kind of special energy was found, and one could grasp it. Few were able to find that power, fewer able to grasp it, and a fraction of them survived their first "touching." More often than not, the poor bastards were found by demons, and with sufficient will, were possessed by them, only to cause murder and, in some cases, debauchery that few would speak of. Due to his fortitude and superb physical condition, Septimus entered the tournament that was held every year at the behest of the men from beyond the horizon, to see if any in his tribe could be found worthy to become a God like them, and spend eternity fighting the enemies of man.

While weapons were allowed in the tournament, Septimus entered only with his fists and feet, so the surprise of everyone involved. His development in using that strange energy, along with the meditation required to find it, allowed him to become immensely fast, which he used to quickly subdue every man that he fought. At the end, once he had won every round, one of the giants approached him, garbed as the others, yet wearing robes and carrying a staff. To him, the giant's shoulders looked the most impressive, massive quarter-moons rounded outward to deflect blows, while the rest looked much like standard armor. Without saying a word, the strange man had pointed his staff at Septimus, and the world erupted in searing flames.

Although Septimus could see around him, he was only aware of the pain. Within his mind, a strange voice called, lured to his sudden spike in psychic resonance.

Your world is in pain... I would spare you that, only, you must let me in to help. My will is more than sufficient to drive your tormentor away.

A "face" appeared within his mind's eye, a constantly shifting blue and pink monstrosity without eyes, but a large, cavernous mouth, surrounded by limbs at strange angles. It..."stared" at him, expectant of access.

Septimus felt quite insulted by the strange thing's presumption that he wanted help. He was doing fine keeping the energies assailing him from scouring his soul.

"Leave me, abysmal horror, I've a tournament to win."

With that, he went deeper into the meditative state, pushing his feelings and emotions away, which gave him more power over what was happening to him. With a final burst of pure willpower, he "shoved" the demon from him, and with it, the pain that was affecting him. Septimus could suddenly interpret was was around him, along with the small circle in the sand at his feet.

The giant only had eyes for Septimus.

"Let him be initiated."