In the 48th minute, the Venezuelan striker assisted Swedish winger Sam Larsson to stretch the lead for Dalian.
"I was really focused each game and each point. Especially against top players, one point can make the difference. So I had to stay very calm and keep going," the world number 50 added.
"I tried to leave last year, but they blocked everything at the last second. It was a project I was excited for but it didn't materialize."
The 33-year-old striker, who came on after the interval, latched onto a through pass from teammate Wu Xi before sending it into the net in the 65th minute.
Photos of Bale in the stands in those games showed the forward looking bored and willing to show that boredom by appearing to be half asleep at times, knowing he would not play.
In the 65th minute, Dalian's Ke Zhao added a goal of his own and sealed the 4-0 victory.
Luneng, who lost to Dalian Pro 1-0 in the last round, hit the woodwork twice during the game against Suning.
Parkinson's disease is a progressive nervous system disorder that affects movement. Symptoms start gradually, sometimes starting with a barely noticeable tremor in just one hand. Tremors are common, but the disorder also commonly causes stiffness or slowing of movement.
Speaking to Sky Sports while on international duty with Wales, Bale was asked about his future at the La Liga champions.
Before the game, Dalian ranked seventh with six points in the eight-team division in northeastern China's Dalian city, while Henan, also on six points, sat at the bottom by virtue of their inferior goal difference.
DALIAN, China, Sept. 3 (Xinhua) -- Former Italian international Eder scored the winner to help Jiangsu Suning beat Shangdong Luneng 1-0 in a Chinese Super League tie on Thursday.