Does Karma Exist? Do we have multiple Rebirths / Samsara?

Are people re-born based on their Karma? Do some people have memories of their previous birth? What is the truth?

Read Karma and Rebirth Theory in Hinduism - Ganeshaspeaks

Saṃsāra - Wikipedia

Wheel of Life

Perfect answer to the endlessly asked if there's no self what is

The Origin And Development Of Karma Doctrine In Hinduism

In Buddhism, Karma is the force that drives the cycle of suffering

Karma and Rebirth – Henri van Zeyst

What Turns the Wheel of Life - Lions Roar

Understanding the Mystical Links Between Karma & Incarnation

Introduction to Buddhism by School of Foreign Service - Georgetown