Happiness is an interesting topic. I educated myself on it as I believe I was dealing with an existential vacuum in my life after leaving the Witnesses. Here are some hard lessons I learned -
- Happiness comes from within. No person, no place, no item, no experience can give happiness to you. Jehovah himself cannot make me happy.
- Happiness is a state on content, which requires a strong sense of gratitude.
- Happiness requires freedom. Freedom from fear, anxiety, sorrow, and regret.
I cannot see how it would be possible to experience happiness while being active as one of Jehovah's Witnesses.
Jehovah's Witnesses teach that happiness is not possible in this "old system of things" and the only placeholder is complete immersion into the activities of the organization under the guise of "serving Jehovah."
Jehovah's Witnesses teach that you are imperfect and deserving of death. Witnesses teach that when you break a command or law of Jehovah you are guilty of sin. Every time you sin you are re-crucifying Jesus. This instills in a believer's heart an enormous amount of guilt. Sometimes this guilt is so great it pushes a person to suicide.
Jehovah's Witnesses teach that a day will come when Jehovah will destroy the majority of humans. Only a select chosen few, the remnant of the 144,000 on Earth, are spared. Witnesses teach that if you join their organization and blindly obey it's leadership you might be spared, but it is no guarantee. However, if you are somehow spared, you will live forever in perfect health for eternity. This instills fear and anxiety of an enormous magnitude.
Jehovah's Witnesses teach that if your family or friends do not join you in being a Witness they are not to be associated with now. In addition, those family and friends will be destroyed, forever, at Armageddon. The only comfort you receive from Witnesses is that you will make new friends, which is not what you experience, and you will eventually forget your dead loved ones. This creates a deep sense of sorrow.
Fear, anxiety, sorrow, and regret - these are the pillars that support the Watchtower religion. Inside the building those pillars support is no happiness to be found.
Can you feel joy by loyally serving Jehovah? Yes and no. Joy is not happiness. It is a momentary euphoric feeling obtained from an experience. If you truly believe in the Watchtower teachings you might find some joy when you go out in field service or give a part on a meeting program. However, the Watchtower doesn't like that. So they crush that joy by saying, "While spending 90 hours in the ministry last month is fine, brother, we have to ask you - can you do more?"