Wonder and the sense of the mysterious quote by Albert Einstein

The most beautiful and deepest experience a man can have
is the sense of the mysterious. It is the underlying
principle of religion as well as all serious endeavour
in art and science. He who never had this experience
seems to me, if not dead, then at least blind.
To sense that behind anything that can be experienced
there is a something that our mind cannot grasp and whose
beauty and sublimity reaches us only indirectly and
as a feeble reflection, this is religiousness.
In this sense I am religious. To me it suffices to wonder
at these secrets and to attempt humbly to grasp with
my mind a mere image of the lofty structure of all
that there is.
Albert Einstein