Have you ever felt as if you been here before?
lived a life as someone else or perhaps even as some sort of animal?
I have, I felt as if I once been here before, I have this strange feeling that I once lived in the rolling twenty’s, My death came from sickness at a young age, problem some where around early 30’s.
Don’t know why I feel like that but I do. 
Tell me what do you think about afterlife?
Afterlife as reincarnation
Another afterlife concept which is found among Hindus, Rosicrucians, Spiritists, and Wicca is reincarnation, as evolving humans life after life in the physical world, that is, acquiring a superior grade of consciousness and altruism by means of successive reincarnations. This succession is conceived to lead toward an eventual liberation or spiritual rebirth as spiritual beings. However, some practitioners of eastern religions follow a different concept called metempsychosis which purposes that human beings can transmigrate into animals, vegetables or even minerals[citation needed]. One consequence of the Hindu and Spiritist beliefs is that our current lives are also an afterlife. According to those beliefs events in our current life are consequences of actions taken in previous lives, or Karma.
Buddhists, however, believe that rebirth takes place without a self (similar to soul) and that the process of rebirth is simply a continuation of the previous life. The process of being reborn as any other being is based on your karma. And from a Buddhist perspective, the current life is actually a continuation of the past life.
In Tibetan Buddhism the Tibetan Book of the Dead explains the intermediate state of humans between decease and reincarnation. The deceased will find the bright light of wisdom, which shows a straightforward path to move upward and leave the cycle of reincarnation. There are various reasons why deceased not follow that light. Some had no briefing about the intermediate state in the former life. Others only used to follow their basic instincts like animals. And some have fear, which results from foul deeds in the former life or from insistent haughtiness. In the intermediate state the awareness is very flexible, so it is important to be virtuous, adopt a positive attitude and avoid negative ideas. Ideas which are rising from subconsciousness can cause extreme tempers and cowing visions. In this situation they have to understand, that these manifestations are just reflections of the inner thoughts. No one can really hurt them, because they have no more material body. The deceased get help from different Buddhas who show them the path to the bright light. The ones who do not follow the path after all will get hints for a better reincarnation. They have to release the things and beings on which or whom they still hang from the life before. It is recommended to choose a family where the parents trust in the Dharma and to reincarnate with the will to care for the welfare of all beings.
Rosicrucian’s, in the same way of those who have had near-death experiences, speak of a life review period occurring immediately after death and before entering the afterlife’s planes of existence (before the silver cord is broken), followed by a judgment, more akin to a Final Review or End Report over one’s life.
Some Neopagans believe in personal reincarnation, whereas some believe that the energy of one’s soul reintegrates with a continuum of such energy which is recycled into other living things as they are born.[citation needed]
Sikhs also believe in reincarnation. They believe that the soul belongs to the spiritual universe which has its origins in God. It is like a see-saw, the amount of good done in life will store up blessings, thus uniting with God. A soul may need to live many lives before it is one with God.
Other Beliefs
There are many different beliefs about what is after death, and even more recently due to the rise and influence of many more religious sects, cults, and the new age movement. A few cults have claimed that aliens in spaceships will take us away once we are dead. Others claim that aliens are breeding us for experiments, or performing tests on us. Other speculate that we could be time travelers, or forever repeating in an eternal cycling of universes. Nietzsche wrote about the idea of the eternal return, where we will repeat forever all of our worst and best actions. Other beliefs today involve past life regressions, and reincarnation in ever more complicated ways. For example, one could simply be waking up from dreams within dreams, and never awakening into the real body for a very long time. There is the idea that this is all an illusion, or pure energy, and that we create our own reality, or move to parallel universes. Some believe that we manifest reality based on what we expect or unconsciously wish. Still others wonder if there is a best way to describe what happens after death.