Do you believe that it's truly a healthy mindset to strive to be happy all the time?
I don't believe this to be true. I believe there is an evolutionary necessity for all emotions we have. On top of that, sadness is actually a vastly superior state to be in in order to demonstrate considerable empathy toward other people.
bubbleguppy,
The term happy, as used by some Bible translators, can be misunderstood. In the Holy Scriptures the term happy has more than one definition. Many places in the Scriptures, happy, does not mean what we think of today, like mirthful.
The term happy means, in many places, very Blessed.
Some Bibles have translated, at 1Timothy 1:11, that God is a happy God. Most Bibles say Blessed at, what is called the seven Blessednesses, Starting at Matthew 5:3-5:11.
Now, here is the point about these differences. Technically, Happy is what the first century Bible writers wrote, but translators are supposed to be translating for their contemporaries, so if the word happy is used the exact meaning is lost because extremely blessed, or Very Blessed, is what the first century writers meant, so I believe the word blessed is more accurate, but even more accurate would be, Very Blessed, for readers in the 21st century.