Sun and My Mood

I am very happy today because it's sunny, though it still cold outside at least the sun is shining. I observe myself when it's gloomy and the sun didn't show up I feel like I don't have much energy in my body. I don't know what's the connection of the sun and my mood but I felt that way. I am thinking maybe because I born and grow up in a warm environment and the sun is shining all day long when the weather is good and it's not raining. I enjoyed so much when I was in my country in the Philippines because it's hot. Now, I am homesick...by the way time is flying so fast and I will going to have a vacation next year. I am looking forward to see my family again for many2x year that we didn't see each other. How I missed them so much and it's quite hard for us not seeing each other for a very long period of time. So that is why I am excited to see my beloved family and to feel the hot of the sun too.