A window will let heat out (bad in the winter / good in the summer) and it will let heat from the sun in (good in the winter bad in the summer).
सूर्यदेवको उपासना र पूजा–आरधानासँगै उदाउँदो सूर्यलाई अर्घ दिएर समापन हुने गर्दछ ।