do you believe in karma?

You know now a days it use to take years for karma to reach you but now it happens quick. Do you believe in the saying, if you dig one hole, dig two? I didn't know what the saying was until I experienced. Basically people were doing so much evil to me, that the good happened to me. The same hole they dug, hoping I fall in, well they fell in it. It doesn't take long at all for people to experience what somebody else done to them.