On a more internal note, it is also possible during Yoga practice to not apply yourself as vigorously as possible to the dharana, or one-pointed focus of the practice, by letting your mind wander during Yoga class. In the moment, this may feel more pleasurable than reigning in your "monkey mind" and focusing only on applying yourself to your practice. In the long run, your Yoga practice may not deepen as quickly and profoundly as it would have if you diligently applied yourself to the internal discipline of focusing on the asanas, and your work in the asanas, to the exclusion of other pleasurable thoughts.
Yoga is a profoundly beneficial form of exercise that is good for the mental and physical health of people of all ages and levels of health. Yoga props are generally considered to be any tools used in the practice of the exercise such as mats, blocks and pillows, and may be selected to fit the needs of the person using them.