Cold and Dark-Energy lost?

Living in Sweden there is one topic that cannot be escaped...weather. Whatever you start with finally an informal discussion always ends with weather discussions. There is a natural smile on everyone's face when it is a bright, sunny day with temperatures beyond 12 degrees. If it is raining or dark or cold or all of this together you can see serious people all around you. This is a big contrast for me-I am used to seeing people in India irrespective of wealth status or pains they have to push one day at time wearing a smile or are happy all the time. Maybe it is because they have sun all the time or there is something else that makes them happy.
This made me dwell deeper into the subject-"Cold and Dark-does this equal to Energy lost". External conditions which we don't control directly impacts our energy which we own and control. The answer to this lies not in the equation but in the way we are brought up. When I moved to Philippines, I heard a discussion of an interview in which there were 4 candidates for a position and was considered to be very tough competition. I remembered when I joined my first job there were 45 engineers interviewed for 2 positions and everyone thought they had a fair chance. Everyone was cheerful. When the results were announced apart from a momentary disappointment everyone moved on. Is this a philosophy of life Indians due to religion, culture or sheer competition imbibe? I am not sure. But the external factors (in this case competition) was not able to blunt the internal energy enough to take away the smiles and inherent happy state. On a similar note when I was talking to an old lady who has lived here for last 50 years (Who fought her cancer away)-she had a simple advice to live. Rain or cold-dress up your physical body for protection and do what your soul enjoys to do with no inhibition. Then you control your happiness. Don't sit at home and stare through the windows cursing the rains or darkness as this does not change anything but makes you feel more miserable. Just tuning the mind and telling to self that nothing can stop me from being happy is the therapy which we require to spread to the world. There is energy lost if we think hard about it and do nothing about it. If we have to do something then let us first tell ourselves that we are the Sun when light is not there (which is the principle of Advaita-every soul is the reflection of the bigger soul (God) similar to reflection of light from the Sun making smaller suns), we are the heat when heat is not there (we are afterall warm blooded and it only requires happiness to tune the body settings right apart from clothes)..Energy is in the soul and soul is connected to the body with the brains. Let us train ourselves to get the energy booster which is fully in our control and keeps the world moving forward despite pessimists and fatalists saying for example as per Mayan calendar the world will come to an end in 2012 Dec 21st.
As long as we live we will enliven others by not feeling depressed by anything outside us with the simple remedy within us-happiness reflected by smiling faces.