Recite ye the verses of God every morn and eventide. Whoso faileth to recite them hath not been faithful to the Covenant of God and His Testament, and whoso turneth away from these holy verses in this Day is of those who throughout eternity have turned away from God. Fear ye God, O My servants, one and all. Pride not yourselves on much reading of the verses or on a multitude of pious acts by night and day; for were a man to read a single verse with joy and radiance it would be better for him than to read with lassitude all the Holy Books of God, the Help in Peril, the Self-Subsisting. Read ye the sacred verses in such measure that ye be not overcome by languor and despondency. Lay not upon your souls that which will weary them and weigh them down, but rather what will lighten and uplift them, so that they may soar on the wings of the Divine verses towards the Dawning-place of His manifest signs; this will draw you nearer to God, did ye but comprehend.
Purge Thou mine ear, O my Lord, that I may hearken unto the verses sent down unto Thee, and illuminate my heart with the light of Thy knowledge, and loose my tongue that it may make mention of Thee and sing Thy praise. By Thy might, O my God! My soul is wedded to none beside Thee, and my heart seeketh none except Thine own Self.
(Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, LXXXIV) 
Occupy thyself in remembrance of the Beauty of Him Who is the Unconstrained at early morn, and seek communion with Him at the hour of dawn. O ‘Alí! Remembrance of Me is a healing medicine to the souls and a light to the hearts of men.
(Bahá’u’lláh, from a Tablet—translated from the Persian) 
I render Thee thanks, O Thou Who hast lighted Thy fire within my soul, and cast the beams of Thy light into my heart, that Thou hast taught Thy servants how to make mention of Thee, and revealed unto them the ways whereby they can supplicate Thee, through Thy most holy and exalted tongue, and Thy most august and precious speech. But for Thy leave, who is there that could venture to express Thy might and Thy grandeur; and were it not for Thine instruction, who is the man that could discover the ways of Thy pleasure in the kingdom of Thy creation?
(Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, CLXXVI) 
Make my prayer, O my Lord, a fountain of living waters whereby I may live as long as Thy sovereignty endureth, and may make mention of Thee in every world of Thy worlds.
(Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, CLXXXIII) 
O Son of Light! Forget all save Me and commune with My spirit. This is of the essence of My command, therefore turn unto it.
O Son of Glory! Be swift in the path of holiness, and enter the heaven of communion with Me. Cleanse thy heart with the burnish of the spirit, and hasten to the court of the Most High.
Glory be unto Thee, Thou art exalted above the description of anyone save Thyself, since it is beyond human conception to befittingly magnify Thy virtues or to comprehend the inmost reality of Thine Essence. Far be it from Thy glory that Thy creatures should describe Thee or that anyone besides Thyself should ever know Thee. I have known Thee, O my God, by reason of Thy making Thyself known unto me, for hadst Thou not revealed Thyself unto me, I would not have known Thee. I worship Thee by virtue of Thy summoning me unto Thee, for had it not been for Thy summons I would not have worshiped Thee.
(The Báb, Selections from the Writings of the Báb (Haifa: Bahá’í World Centre, 1978), p. 203) 
Remembrance of God is like the rain and dew which bestow freshness and grace on flowers and hyacinths, revive them and cause them to acquire fragrance, redolence and renewed charm. “And thou hast seen the earth dried up and barren: but when We send down the rain upon it, it stirreth and swelleth, and groweth every kind of luxuriant herb.”1 Strive thou, then, to praise and glorify God by night and by day, that thou mayest attain infinite freshness and beauty.
(‘Abdu’l-Bahá, from a Tablet—translated from the Persian) 
It behoveth the servant to pray to and seek assistance from God, and to supplicate and implore His aid. Such becometh the rank of servitude, and the Lord will decree whatsoever He desireth, in accordance with His consummate wisdom.
(‘Abdu’l-Bahá, from a Tablet—translated from the Arabic) 
Praise be to God, thy heart is engaged in the commemoration of God, thy soul is gladdened by the glad tidings of God and thou art absorbed in prayer. The state of prayer is the best of conditions, for man is then associating with God. Prayer verily bestoweth life, particularly when offered in private and at times, such as midnight, when freed from daily cares.
(‘Abdu’l-Bahá, Selections from the Writings of ‘Abdu’l-Bahá (Wilmette: Bahá’í Publishing Trust, 2009), no. 172) 
We must strive to attain to that condition by being separated from all things and from the people of the world and by turning to God alone. It will take some effort on the part of man to attain to that condition, but he must work for it, strive for it. We can attain to it by thinking and caring less for material things and more for the spiritual. The further we go from the one, the nearer we are to the other. The choice is ours.
Our spiritual perception, our inward sight must be opened, so that we can see the signs and traces of God’s spirit in everything. Everything can reflect to us the light of the Spirit.
(Report of ‘Abdu’l-Bahá’s words as quoted in J. E. Esslemont, Bahá’u’lláh and the New Era, 5th rev. ed. (Wilmette: Bahá’í Publishing Trust, 1980), p. 89) 
Know thou, verily, it is becoming in a weak one to supplicate to the Strong One, and it behooveth a seeker of bounty to beseech the Glorious Bountiful One. When one supplicates to his Lord, turns to Him and seeks bounty from His Ocean, this supplication brings light to his heart, illumination to his sight, life to his soul and exaltation to his being.
(Report of ‘Abdu’l-Bahá’s words as quoted in J. E. Esslemont, Bahá’u’lláh and the New Era, p. 93) 
In the highest prayer, men pray only for the love of God, not because they fear Him or hell, or hope for bounty or heaven.... When a man falls in love with a human being, it is impossible for him to keep from mentioning the name of his beloved. How much more difficult is it to keep from mentioning the Name of God when one has come to love Him.... The spiritual man finds no delight in anything save in commemoration of God.
(Report of ‘Abdu’l-Bahá’s words as quoted in J. E. Esslemont, Bahá’u’lláh and the New Era, pp. 94–95)