You become strong at doing what you train at. If its traditional strength training, then lifting weights is going to make you stronger in lifting and carrying t

You become strong at doing what you train at. If its traditional strength training, then lifting weights is going to make you stronger in lifting and carrying things. You are only going to gain so much strength when lifting or moving parts of your body, until you will need to focus on lifting heavier weights. There's nothing wrong with that at all as it's not everyone's aim to have huge muscles. At the end of the day in Yoga you are still lifting or holding something, it's just your own weight.