This sentence should come from a poem "Night Walk". The sentence "live through that whining dog" means that the author must experience some difficulties and unpleasantness in life before he can become a stronger and more experienced person. In this metaphor, the dog represents the difficulties and setbacks in life, and it will whine, indicating that the author will face pain and struggle when experiencing these difficulties. But the author must "live" the dog, that is, he must remain strong and courageous in the face of difficulties, and finally overcome all kinds of difficulties in life in order to reach his destination smoothly.
In real life, we often encounter some difficulties and setbacks. At this time, we need to be as strong and brave as the author in the poem and face it positively. Only after experiencing difficulties can we grow and improve our abilities and meet more challenges in the future. Therefore, we must learn to grow up from difficulties and experience all the whining dogs in order to become better people.