For me sometimes the rain means melancolic age, it reminds me of days without sun and days without flavour, days without life.
Sometimes the rain means to me clarity and peace, because the rain clean all dirty and chaos.
But some specific times the rain reminds me the unclarity on my own life and blurs my vision and my mind.
However, when the rain is gone it means to me life. Because all the melancolism and all unclarity disappear and brings green grass, blue skies and some magnific times bring us a rainbow.