An extrapalation of that is that we are authors of our own story, the map of life is laid before us, we are given a vehical and we choose where to go. Or do we. If you have a vehical (the body) that has a small engine, poor electronics, or a crap satnav then what are you going to achieve.
Obviously the body that your given is exactly that, your body. You can add fluffy dice (ear rings) and maybe a paint job (makeup) and a spoiler (boobjob) or flared wheel arches (?) but thats about it. To change anything major its really expensive and you could end up with a right mess. So we can only do our best by using good clean fuel, oiling the joints and generally taking care of those little maintainance jobs. The electronics are taken care of if they are not abused and they are maintained by not burning them out.
So what of the satnav. The internal compass that guides us to where we want to be? Well the satnav needs to be programmed with our experience and knowledge of the world. It needs to be connected to an energy source and needs to be listened to. But what do we have to do with any satnav before we set off? We have to tell it where we want to go, and to do this we must focus on a goal. The best way to focus on a goal is to think about it and do little steps every day, meditation is a way to do the programming of your subconcious, to give your satnav its destination. The key is to know where you want to go in the first place. If your a small engined truck you will get there but it will take time, if your the sports car then you need to be carefull and remember there is no power without control. And above all look after your vehical, because if you don't, you'll never get to your destination. Remember even the best tow company in the world will take you all the way