Shalulile is currently second on the National First Division top goalscorers' chart with 13 goals, one goal behind Mwape Musonda of Black Leopards.
Shalulile says the dream of being a PSL player again motivated him to score goals for the newly-crowned NFD champions.
"It's an unexplainable feeling my brother," Shalulile tells KickOff.com.
"I'm happy and at the same time it's an unexplainable feeling. It is a positive feeling, I am very, very happy to get back to the PSL.
"At the beginning of the season I didn't know that I will score such goals, the only thing that pushed me was the motivation to come back to the league. And my teammates pushing me and the coach was also pushing me."
Shalulile is determined to buck the trend of strikers doing well in the second tier only to flop in the elite division.
"I will push more, I will change my style of play and do something more better than the way I performed this season."
Highlands sealed an immediate return to the PSL with four games to spare following their relegation from the topflight last term.