Poetry uses forms and conventions to suggest differential interpretation to words, or to evoke emotive responses. Devices such as assonance, alliteration, onomatopoeia and rhythm are sometimes used to achieve musical or incantatory effects.
The average speed of an object tells you the (average) rate at which it covers distance. If a car's average speed is 65 miles per hour, this means that the car's position will change (on the average) by 65 miles each hour.
The average typing speed is said to be around 40 WPM. Males tend to type faster than females, on an average. The average speed for males is around 44 WPM, while that for females is 37 WPM. With practice and typing a lot on the job, there are people who go up to even 200+ WPM.