God in his wisdom has

God in his wisdom has created all things. Nothing has been created
without special destiny, for every creature has an innate station of attainment. This flower has been created to mirror forth a harmonious ensemble of color and perfume. Each kingdom of nature holds potentialities and each must be cultivated in order to reach its fulfillment. The divine teachers desire man to be educated that he may attain to the high rank of his own reality, the deprivation of which is the rank of perdition. The flower needs light that it may achieve its fruitage;  man needs the light of the Holy Spirit, and the measure of illumination throughout creation is proportionate to the different kingdoms.
When we come to the estate of man, we find his kingdom is vested with a divine superiority. Compared to the animal, his perfection or his imperfection is superior. In comparison with man the perfection of a flower is insignificant.
Yet if a man remain content in an undeveloped state viewed from the point of capacity he is the lowest of creatures. If he attain unto his heritage through divine wisdom, then he becomes a clear mirror in which the beauty of God is reflected; he has eternal life and becomes a participator of the sun of truth. This is to show you how considerable are the degrees of human achievement.

'Abdu'l-Baha, Divine Philosophy, p. 110-111