If that were truly the case, then it was better to keep searching for such things whenever she could and to be open to the possibilities of more being possible than what she was already aware of.
From what she already understood, Life Energy was generated from the totality of a person's vitality, whether it would be their physical health, mental state, emotional stability, or spiritual enlightenment.
Balancers who were better trained were still not able to actively convert their raw vitality into usable Life Energy, but they were still able to prevent it from leaking from their bodies.
The body's natural vitality would be produced through metabolism, rest and emotional balance, which would be key factors toward helping to generate and convert Life Energy while preventing it from leaking.
If they had a good enough grasp of such a basic thing, then they could allow themselves to recharge their Life Energy more efficiently since they would not be leaking any during such a time.
