Cleanse them, then, O my God, from all idle fancies and vain imaginations, that they may inhale the fragrances of sanctity from the robe of Thy Revelation and Thy commandment.

Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, p. 307

But many things come to the mind of man which are like the waves of the sea of imaginations; they have no fruit, and no result comes from them.

‘Abdu’l-Bahá, Some Answered Questions, p. 252

But the pure souls, a hundred thousand tests are but to them like mirage, imagination and shadow.

‘Abdu’l-Bahá, Tablets of ‘Abdu’l-Bahá v2, p. 251

Man must not imagine disease but must ever trust God. Anyway, a man’s life here in this world is temporary. He is in a world that is like a house, susceptible to every invasion, and God must protect man—man must be submissive to God. He must not occupy himself with things—imaginings. If a man thinks too much of his health, he will become afflicted.

‘Abdu’l-Bahá, Throne of the Inner Temple, p 22

These faculties are but the inherent properties of the soul, such as the power of imagination, of thought, of understanding; powers that are the essential requisites of the reality of man, even as the solar ray is the inherent property of the sun.

‘Abdu’l-Bahá, Tablet to August Forel, p. 24

This morning the city is enveloped in fog and mist. How beautiful is a city brilliant with sunshine. Just as these mists and vapors conceal the phenomenal sun, so human imaginations obscure the Sun of Truth. Consider the radiant glory of the great solar center of our planetary system: how wonderful the sight, how its splendor illumines vision until clouds and mists veil it from the eye. In the same way, the Sun of Truth becomes veiled and hidden by the superstitions and imaginations of human minds. When the sun rises, no matter from what dawning point on the horizon it appears -- northeast, east, southeast -- the haze and mists disperse, and we have clear vision of its glory mounting to the zenith.

‘Abdu’l-Bahá, The Promulgation of Universal Peace, p. 78