Yoga was developed very long ago as a multi-dimensional method of self-realization. There are many different kinds of yoga that have a variety of benefits for the individual and many ways to approach a yoga practice. It can mean physical strength for some, for others it is more spiritual and deeply meaningful.
One of the reasons people do yoga is the opportunity to practice being calm or relaxed in the middle of discomfort. This can translate into being able to use the relaxation techniques and relax even under stressful conditions. For example, if the neighbors are noisy, use the relaxation techniques to tune out and drift off to sleep. Basically, staying focused and mentally strong during difficult poses develops more than the body. It develops a confidence and inner calm that can carry over into other areas of life.
Today, there are too many things that stimulate us and make us feel like we need to constantly be striving. Yoga and the relaxation techniques involved can be a welcome relief.