Vegeta and how he attained SSG in the anime

People keep talking about how Vegeta attained SSG by just pure willpower and training or w/e. I thought in that room Whis sent them into, when they just started training and Goku's and Vegeta's fist collide, it shows a blue spark/flash. Wasnt that how Vegeta attained SSG? He sorta got "jump started" by the god ki from Goku?