We declare that love is the cause of the existence of all phenomena and that the absence of love is the cause of disintegration or non-existence.
Abdu'l-BaháTherefore, in this world he must prepare himself for the life beyond. That which he needs in the world of the Kingdom must be obtained here. Just as he prepared himself in the world of the matrix by acquiring forces necessary in this sphere of existence, so, likewise, the indispensable forces of the divine existence must be potentially attained in this world.
Abdu'l-BaháLove is the spirit of life unto the adorned body of mankind, the establisher of true civilization in this mortal world, and the shedder of imperishable glory upon every high-aiming race and nation.
Abdu'l-Bahá