Gauss' Law is equivalent to the Force Equation for Electric Charges: like charges repel each other and opposite charges (i.e. positive and negative charge) attract.
Gauss' Law also says that Electric Field lines diverge away from Electric Charges. This means that positive charge acts as a source of Electric Fields (like the way a faucet is a source of water). Gauss' Law means that negative charges acts as a sink for Electric Fields (the way water drains or exits a region via a sink hole). This means Electric Field lines start and stop on Electric Charge.