Inspiration is defined by Dictionary.com as "a thing or person that inspires."
We all will experience periods of lower motivation, especially if we are experiencing less success than we anticipated or moving more slowly toward our goals than we anticipated.
The key is to keep the motivation high, as it's really our "fuel" to attain the goals we want to achieve.
We need to look around at our environment and see who or what can inspire to keep our motivation and enthusiasm up to attain our goals.
There are often many examples that can help us improve our performance.