Why are we all born?

We all search for permanent happiness, i.e., Bliss as a universal desire. Due to our ignorance, we think that "Happiness is in the outside world objects like Food, Sex, Power, Prestige..." So we are born again and again to fulfill our ego.

The Truth is that the moment (Sathini Padam} the soul realises that the source of happiness is not in the outside sense objects, i.e., seeing, hearing, touching, Smelling, & Tasting. It will come out of this infinite loop of the whirlpool of this life cycle (i.e., Birth & Death cycle - Samsara).

Till that wisdom is self-realized by GOD's grace, this soul will be born again and again as Adi Shankara's Bhaja Govindam as mentioned below.

punarapi jananaṃ punarapi maraṇaṃ

punarapi jananī jaṭhare śayanam |

iha saṃsāre bahu dustāre

kṛpayā’pāre pāhi murāre ‖ 22 ‖

Birth again, death again, again resting in the mother’s womb! It is indeed hard to cross this boundless ocean of saṁsāra (cycle of repeated birth and death). O Murāri! by your causeless mercy please protect me (from this transmigratory process). (Stanza attributed to Nityanātha.)

punarapi — again and again; jananaṁ — birth; punarapi — again and again; maraṇaṁ — death; punarapi — again and again; jananī — mother; jaṭhare — in the belly, womb of mother; śayanam — sleeping, resting; iha — in this world here; saṁsāre — transmigration, repeated cycle of birth and death; bahu-dustāre — with great difficulty to cross; kṛpayā’pāre — grace, out of boundless compassion; pāhi — protect; murāre — Murāri, – Murā’s enemy Kṛṣṇa.