Sacrifice

Were they, every moment of their lives, to offer up themselves as a sacrifice in Thy path, they would still have done but little in comparison with the manifold bestowals vouchsafed unto them by Thee.

Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, p. 161

. . . to make a sacrifice is to receive a gift, and whatsoever may come to pass hath issued from God's grace.

‘Abdu’l-Bahá, Selections from the Writings of ‘Abdu’l-Bahá, p. 245

As for the symbol of the cross, appointed in former times: Know verily, that the cross form is a wonderful figure and consists of two right lines placed crosswise -- one perpendicular to the other -- and this figure exists in all things. Meditate upon these words and pay attention to the tissue in all existing substances, either plant, animal or man, and thou wilt see that they all are formed of the cross figure or two crosswise lines. Consider this intently with true meditation. Then thou wilt be taught by the Holy Ghost that it is for this reason that God hath chosen this symbol to be displayed as the token of sacrifice in all periods of ages. I will explain to thee, in future time, the mystery of sacrifice. There is nothing more beautiful than this tree united with the cross. Verily, this tree is a type of the Tree of Life in conjunction with the cross; in this, the mystery of sacrifice.

‘Abdu’l-Bahá, Tablets of ‘Abdu’l-Bahá v3, p. 597

As to the third meaning of sacrifice, it is this: If you plant a seed in the ground, a tree will become manifest from that seed. The seed sacrifices itself to the tree that will come from it. The seed is outwardly lost, destroyed; but the same seed which is sacrificed will be absorbed and embodied in the tree, its blossoms, fruit and branches. If the identity of that seed had not been sacrificed to the tree which became manifest from it, no branches, blossoms or fruits would have been forthcoming.

‘Abdu’l-Bahá, The Promulgation of Universal Peace, p. 450

Every man trained through the teachings of God and illumined by the light of His guidance, who becomes a believer in God and His signs and is enkindled with the fire of the love of God, sacrifices the imperfections of nature for the sake of divine perfections. Consequently, every perfect person, every illumined, heavenly individual stands in the station of sacrifice. It is my hope that through the assistance and providence of God and through the bounties of the Kingdom of Abhá you may be entirely severed from the imperfections of the world of nature, purified from selfish, human desires, receiving life from the Kingdom of Abhá and attaining heavenly graces. May the divine light become manifest upon your faces, the fragrances of holiness refresh your nostrils and the breath of the Holy Spirit quicken you with eternal life.

‘Abdu’l-Bahá, The Promulgation of Universal Peace, p. 452

Observe how rarely human souls sacrifice their pleasure or comfort for others; how improbable that a man would offer his eye or suffer himself to be dismembered for the benefit of another.

‘Abdu’l-Bahá, Bahá’í Scriptures, p. 358