Coro di dea - Megami-tachi no Utagoe (translation)

Your joy is the proof you've shared happiness with someone 
Your sorrow is the proof you've shared pain with someone 
The road may be steep, but it's far better than an uneventful life 
Everyone has proof of life 
What's important is to find it and believe it 
Love, bravery, and hope, they all exist in everyones heart 
Everyone is waiting for the door to open 
And when you achieve it 
The word (someone) will smile for you