Devas or human beings who accumulate the merit of making one light offering – will see the fully enlightened Buddha, Maitreya.
The Sutra of Arya Maitreya says, “Those who offer a thousand lights or a thousand blue utpali flowers or make the pinnacle of a stupa or a holy form will be reborn when Maitreya Buddha shows the deed of gaining enlightenment and will receive his first Dharma teaching.”
It is also said that those who offer even one flower or rejoice in the merit of others who offer will achieve buddhahood. This means that even if you don’t get enlightened during the time of Guru Shakyamuni Buddha’s teaching, during Maitreya Buddha’s teaching your mind will ripen and you will gain liberation.
Offering light, in particular, is a special door of dependent arising for quickly completing the accumulation of merit and receiving great blessings. It is said in the second chapter of the root tantra of Chakrasamvara, who is a manifestation of Shakyamuni Buddha, “If you want sublime realizations, offer hundreds of lights.”
If you want to know the detailed results of making offerings to holy objects or of offering service to the buddha or other holy objects, you should study The Sutra of the One Who Looks with a Compassionate Eye (Avalokiteshvara), the Sutra of Sogyal, where Buddha gave instruction to King Sogyal, or the Könchog Tala.
The text, Immortal Drum Sound Mantra, says, “If you devote yourself to the Inconceivable One, the results will similarly be inconceivable.” In the same way, The Sutra of the One Who Looks with a Compassionate Eye says, “Since the dharmas (i.e., the qualities) of the buddha gone thus (tathagata) are limitless, making offering to the tathagata brings limitless, infinite, inconceivable, in- comparable, unimaginable, numberless benefits.”
The Small Quotation (Lungtentseg) sutra says, “It is possible for the moon and stars to fall to earth, for mountains and forests to rise up into the sky and for the water of the great oceans to completely dry up, but it is not possible for the great sage (the buddha) to tell a lie.
Keep this in mind and generate strong devotion to and faith in the root of all happiness and goodness – actions and their results (karma) and the blessings of the Three Precious Rare Sublime Ones.
While you have this body and possessions – which are as if borrowed for a year, a month or a few days, night and day, all the time, attend to the practice of taking the essence of this human life, whose short duration is like a flash of lightning, by planting as many seeds as possible in the special field of merit.”