A shell is created when you give preference to yourself in actions and deeds, and this preference breaks the relationship of a human being with timelessness and infinity. Then a person thinks, understands and feels within limitations. The universe is something spiritual and beyond the physical. It is infinite. Those who have made God the centre their acts and deeds and who have handed themselves over to the infinite eternal power recognize everything with reference to God. In such people the spirit of God is foremost.