(MY OPINION)
Brief Explanation
Storms are unexpected , just like the problems in our life . The "storm" here describes something that will eventually go away , just like problems.
What does "Life is like a storm" mean?
We hate problems , right ? It is troublesome and we have to solve them . When problems appear , we tend to feel bad angry , guilty , scared or even sad . It just spoils our mood .
Hey , it isn't FOREVER , CHILL DUDE . Life is like a storm , storms will go away , just like problems , you have to bear that pain until it goes away ! So whatever you face , DO NOT give up as problems will go away , you just have to wait and do whatever you can to reduce the pain in your heart .
Conclusion
Life is like a storm . Coming and going away , when it comes , it is unbearable and scary but when it goes , YOU ARE FREE AGAIN .