Where the heart leads, there the actions follow.
To strive forward for the goal in his heart—this was Liens's consistent pursuit.
When he was a Slave, his goal was freedom; after gaining freedom, his goal became to grow stronger, to pursue a higher realm.
The reason he believed the world had a severe impact on him was precisely because the world was blurring his goals, with endless information affecting his heart.
To some extent, his situation was somewhat similar to Elsa's: both knew their goals and were striving towards them, yet they lost themselves along the way.
Before realizing his problem, he thought his will was firm enough, that growing stronger and pursuing a higher realm were his life's desires.
But the current changes told him that he had not yet found the beacon that would allow him to remain steadfast amidst the world's continuous influence.
He had not yet found his heart's direction.