The snow is a symbol of the consciousness in a condition of purity, silence and peace.

The Power and Peace that come down come down from the higher consciousness above your head, from a greater self of which your mind, the human mind generally, is unaware. They are the power and peace of the Divine. When they envelop you from outside the body (therefore you feel them external,) it is as a protection and an atmosphere. But also they descend into the body, into the head (mind), heart and navel (vital) and through the whole body working in you and doing what is necessary to change the consciousness. When you do not feel it there, when you feel it only as external, it is because you are very much in the external physical consciousness, but in reality it is there in your inner being working in you. When you recover the inner consciousness, you feel it again within and it wakes in you your own true consciousness, the psychic and it is only the psychic that gives faith and devotion. It is however a great progress if, even when in the external physical consciousness, you feel the Peace enveloping you.
So long as there is not a constant action of the Force from above or else of a deeper will from within, the mental will is necessary.