Approaching the topic scientifically was impossible for Khan. He didn't know enough about those fields even to begin establishing a reliable perspective.
However, Khan knew the mana more than most. In some ways, he even surpassed Liiza and Zalpa since he had seen a wider assortment of possible applications. He was a student of multiple worlds, occasionally giving him an edge over actual Shamans.
The Great Old One and the Nak immediately came to mind when Khan heard Zalpa's guess. The former would be easier to explain, but its implications would be more problematic. Instead, the latter would make the topic too mystical even for Khan.
The ancient, gargantuan creature could fill the universe with waves of energy even scanners couldn't spot. Moreover, that mana continuously updated the Great Old One about its findings, acting as countless probes that gathered an unfathomable amount of information.