Looking at the previous bars, we can see that the support line was once a resistance line several times. Last time the market hit the support lone, it shot up quite considerably so I can safely assume it will do that again because markets like to follow a pattern (hence the )
We have two options: (aggressive or conservative approach)
Aggressive: We can wait for the market to go above the support line and test the depth of the support which will hopefully shoot up.
Conservative: We can wait a while for the market to retrace back to the support line when it completes it "pattern" and buy from there on.