Silent happiness as well as longing have their best companion.
It is austerity. Without self-denial silent happiness will never be neither happiness nor silent.
I will mention one thing that it needs urgent correction and that was never before so much present in the Western society like today.
Obesity.
Food is today often used as supply for love and attention. Everybody needs love and attention, we are living beings. But there is confusion in calling things by their right names.
Stomach is not hungry. Your eyes and heart are. It is about strength to say no to the eyes, no to provocations.
Eating, your body produces some substances of happiness.
There are some quick and easy tips how to be more happy and more free from fat:
Be the observer of own mind and be humble with food saying no. Share, give those who are really starving. And you will see how your life is changing.
If you want to overcome hunger fold your tongue and bring it to the upper palate, for not too long. If you are lucky to know the right techniques of yogic breathing exercises and yogic postures, do it more.
Very often people in the restaurants or in all-inclusive places (Ashrams are also all-inclusive places, my deepest respect to all this kind of places where this is not the case) continue eating (their paid meal) even if their stomach is full. It is a torture for health, both physical and mental.
It is good to discriminate this sense by using a strong volition (in a mind-level) and to eat to live and not vice versa. Discrimination of senses is called Viveka.
Nothing is impossible.