Can someone cry because they're happy, or is crying for sadness only?

Normally, we cry when we are sad. Normally, we shed tears because we are unhappy, either because there is pain of the body or there is misery of the mind fear, worry, stress, anxiety, regret, shame, guilt or the agony of the ego, anger, hate, revenge, jealousy, pride, greed and selfishness. But there are times when we may shed tears of entreaty. We may have tears of devotion, tears of love. There are also tears of joy — they are not sad tears. These tears are the emotional expression of deep joy and bliss. And this is also an expression of ultimate happiness. We should not mix up these two type of tears or crying.