Irene had already laid the foundation for him, now all he needed to do was achieve the result.
Using his enhanced senses which were further heightened by the Serenity stone, he attuned himself to the ebb and flow of mana. This was an intuitive understanding of the mystical energy that courses through all things.
Time passed by, as Simon felt his connection with the mana deepen, he could feel the sensitivity of the mystical energy like never before. It manifested as slight tingling, vibrations or even colours in his mind's eye.
He embraced this sensation and let it instinctively guide him. It needs to be mentioned that acquiring [Mana Sense] was not an easy thing. It requires diligent training and unwavering patience.
If there is even a slight chaos in your mind, the entire effort fails.
Sorry for the delay, took me some time to finalise a few things about this arc and the general direction it would head to.