Detachment

When thou wilt purify and clarify thy spiritual nostrils from every worldly moisture, then thou wilt inhale the holy fragrances diffusing from the merciful gardens of these worlds. (‘Abdu’l-Bahá, Bahá’í World Faith, p. 392

And were they to pass through a valley of pure gold and mines of precious silver, they should regard them as wholly unworthy of their attention.

Bahá’u’lláh, Gems of Divine Mysteries, p. 59-60

Cleanse from your hearts the love of worldly things, from your tongues every remembrance except His remembrance, from your entire being whatsoever may deter you from beholding His face, or may tempt you to follow the promptings of your evil and corrupt inclinations. Let God be your fear, O people, and be ye of them that tread the path of righteousness.

Bahá’u’lláh, Gleanings from the Writings of Bahá’u’lláh, p. 275

Could ye apprehend with what wonders of My munificence and bounty I have willed to entrust your souls, ye would, of a truth, rid yourselves of attachment to all created things, and would gain a true knowledge of your own selves -- a knowledge which is the same as the comprehension of Mine own Being. Ye would find yourselves independent of all else but Me, and would perceive, with your inner and outer eye, and as manifest as the revelation of My effulgent Name, the seas of My loving-kindness and bounty moving within you.

Bahá’u’lláh, Gleanings from the Writings of Bahá’u’lláh, p. 326-327

Detachment is as the sun; in whatsoever heart it doth shine it quencheth the fire of covetousness and self.

Bahá’u’lláh, Bahá’í World, V 1, p. 42

Forsake thine own desires, turn thy face unto thy Lord, and walk not in the footsteps of those who have taken their corrupt inclinations for their god, that perchance thou mayest find shelter in the heart of existence, beneath the redeeming shadow of Him Who traineth all names and attributes. For they who turn away from their Lord in this day are in truth accounted amongst the dead, though to outward seeming they may walk upon the earth, amongst the deaf, though they may hear, and amongst the blind, though they may see, as hath been clearly stated by Him Who is the Lord of the Day of Reckoning: "Hearts have they with which they understand not, and eyes have they with which they see not...." They walk the edge of a treacherous bank and tread the brink of a fiery abyss. They partake not of the billows of this surging and treasure-laden Ocean, but disport themselves with their own idle words.

Bahá’u’lláh, Gems of Divine Mysteries, p. 48-49