Ekadashi tithi and the deep, blue hue of Goddess Nilapataka, stand for the deep sleep state of consciousness, within all the four lunar days connected to the deep sleep state. On Ekadashi tithi, our mind is the most absent and is connected with its deepest nature. This is why its nature is ananda or “giving bliss”. Now, depending on, all the “monsters” and “poisons” that we are growing in our unconscious mind, all these negativities can emerge on the surface of our consciousness during Ekadashi, which is why fasting and conscious purification is so recommended during that day. On the other hand, if we are really sincere with ourselves and our desire to connect with the Supreme is pure, this is also the best day to make such a connection. As Swami Sivananda explained, during Ekadashi tithi our mental activity is the lowest. If we additionally lower it by fasting and conscious spiritual practice throughout the day, we can have the chance to catch a glance of the Supreme and touch the higher Reality. Not without a reason kala of the Moon associated with this lunar day is jyotsna or “Divine halo”. Only due to intense spiritual practice and penance our aura gets strengthened and starts to emanate a sort of halo or Divine energy. Goddess Nilapataka helps us on Ekadashi to make our own bioenergy field much stronger – and gives us many hints, how to do that.