the best way to think about torque is it makes things easier (in car terms)
In simple car terms:

2 cars, 1 big steep hill

car 1 has double the torque as car 2.

car 1 will be able to go up the hill alot easier than car 2 in the same gear.

obviously there is alot of information on the net if you google the term torque; this will give you a detailed explantion. torque and horepower go hand in hand.