What are the fruits of the human world? They are the spiritual attributes which appear in man. If man is bereft of those attributes, he is like a fruitless tree. One whose aspiration is lofty and who has developed self-reliance will not be content with a mere animal existence. He will seek the divine Kingdom; he will long to be in heaven although he still walks the earth in his material body, and though his outer visage be physical, his face of inner reflection will become spiritual and heavenly. Until this station is attained by man, his life will be utterly devoid of real outcomes. The span of his existence will pass away in eating, drinking and sleeping, without eternal fruits, heavenly traces or illumination—without spiritual potency, everlasting life or the lofty attainments intended for him during his pilgrimage through the human world...
You must act in accordance with these requirements. A man may be a Bahá’í in name only. If he is a Bahá’í in reality, his deeds and actions will be decisive proofs of it. What are the requirements? Love for mankind, sincerity toward all, reflecting the oneness of the world of humanity, philanthropy, becoming enkindled with the fire of the love of God, attainment to the knowledge of God and that which is conducive to human welfare.
`Abdu'l-Bahá, The Promulgation of Universal Peace
You must act in accordance with these requirements. A man may be a Bahá’í in name only. If he is a Bahá’í in reality, his deeds and actions will be decisive proofs of it. What are the requirements? Love for mankind, sincerity toward all, reflecting the oneness of the world of humanity, philanthropy, becoming enkindled with the fire of the love of God, attainment to the knowledge of God and that which is conducive to human welfare.
`Abdu'l-Bahá, The Promulgation of Universal Peace