So according to Vedic system, supposing that my father or grandfather or any relative had obtained this ghostly body, could not get this gross body, so in his name oblations are offered on the lotus feet of Lord Viṣṇu in Gayā, gayā piṇḍadāna. Then that person gets again gross body—means again he is allowed to enter into the womb of a material mother, and another gross body is formed by the materials supplied by the mother. The form is made according to the form of the mother, and the living entity comes out of the womb and begins his karma again.
So this Gayā city is still existent. The temple is existent, and people go there. So Lord Buddha flourished in this Gayā Province. Kīkaṭeṣu bhaviṣyati. In the Śrīmad-Bhāgavatam it is predicted where the list of the incarnation of Godhead is given in the Fourth Chapter, I think. In that list, Lord Buddha's name is mentioned. Not only his name, but his mother's name: añjana-sutaḥ kīkaṭeṣu bhaviṣyati (SB 1.3.24). Śrīmad-Bhāgavatam was compiled by Vyāsadeva five thousand years ago, and Lord Buddha was to appear in between from this date, about 2,600 years ago he appeared. Therefore the word is given there bhaviṣyati, "future." Five thousand years ago it was future tense; therefore bhaviṣya.
So śāstra is like that: bhūta, bhaviṣya, vartamān. Bhūta means "past," and bhaviṣya means "future," and vartamān means "present." Śāstra will give you direction about past, present and future. That is śāstra. That is called scripture. Even there is system of astrology, it is called Bhṛgu-saṁhitā. From that Bhṛgu-saṁhitā, still, if you go to India, there are many scholars expert in Bhṛgu-saṁhitā astrology. They will tell you, if you approach one of them, he will give you the history of your past life, the history of your present life, and the history of your future life. Their astronomical calculation they give you. At least you will understand so many things of your past life. That will be the evidence. And it will be future life also. Bhṛgu-saṁhitā. That Bhṛgu Muni made this scientific knowledge long, long ago. He has left such calculation, those who are expert. It is simply calculation. They will make a check, and from that check the ślokas are there: "This check means . . . this calculation means this; this calculation means like this."