It's not rating a minimum power or a recommended power. Most 100-watt car speakers will work perfectly well on factory radio outputs, and you aren't going to do them any harm by trying them out. (Ignore anyone who tells you that you can blow any speaker by using it with too low power an amplifier; this is not true).
Ujjayi breath. Ujjayi breathing is a breathing technique employed in a variety of Taoist and Yoga practices. In relation to Yoga, it is sometimes called the ocean breath. Unlike some other forms of pranayama, the ujjayi breath is typically done in association with asana practice.
Angelou's gentle sentiment aside, and accepting the risk of being a touch nerdy, we can measure life by the number of breaths we take. On average, a person at rest takes about 16 breaths per minute. This means we breathe about 960 breaths an hour, 23,040 breaths a day, 8,409,600 a year. Unless we get a lot of exercise. The person who lives to 80 will take about 672,768,000 breaths in a lifetime. (This is based on a person's average respiration rate at rest. It does not take into account the increase in respiratory rate during exercise, or the fact that young children take about 44 breaths per minute.)