perhaps the happiness would be from celebrating that the dear departed was now in the presence of the Lord. that would be the best reason to be happy. of course, As Yeshua (Jesus) the Christ said to Nicodemus, 'unless you are born again you can not see the kingdom of God'. there are many grieving who are blind to that kingdom because they have not experienced being reborn in the Spirit. for them, alas, there is nothing but grieving, because there is nothing but the mud hut in which they have lived.