Do I believe in reincarnation? I don't even give it second thought. What comes, comes, what I need to do exists NOW!

all of nature is cyclic,
as she nurtures human
unfoldment, a series of
incarnations are standard

. I will try to answer your question by approaching it from two significantly different perspectives, the 'human' perspective vs. the 'souls'.

Human beings do not reincarnate. Souls reincarnate. You are a soul, a non-physical 'energy essence personality'* that exists primarily in a reality not limited by the constraints of time and space. As souls, we make a choice to incarnate within constructs of time and space. We do it for the experience, for educational purposes, for the challenges, and mostly just for fun. We generally have a specific intent and purpose each time, usually related to our "soul" maturing processes. This maturing is probably the same process that human religions refer to as 'enlightenment'. When in our natural soul state, we will no longer think of ourselves as human beings. It is also unlikely that we will continue to think of ourselves as Christians, Buddhists, Hindus or party to any other human "ism".

You will, however, share with every other soul what can be summed up in the phrase "I am". From the non-physical perspective of the soul the timeline that, as humans, we see as past, present, and future might be (metaphorically) seen as a sort of cosmic spiral staircase stretching infinitely in every direction within various modalities of space. The soul sees this structure in its entirety with each step dated and teeming with living creatures, human and otherwise. The soul thus has a vast array of "places" and "times" to choose from, to experience, and to play in, all at the same 'time' which, from the souls perspective, is always the ever present now.

As a soul, I Am, and I alone create the reality that I perceive whether it be through human eyes or the vibrational patterns of energy in non-physical environments. With my thoughts, my beliefs and brushes of emotion, I paint my life and my reality on a canvas of time and space.

At some point, the souls' energy level becomes too great for a single human body to contain. It can, however, send portions of its energy into various "bodies" whereby it becomes an "oversoul" existing simultaneously in any number of realities, worlds, dimensions, and "time zones". This is currently the best explanation I can offer. I would only add one thing to consider about the concept of enlightenment and your expressed concerns related to this

"According to Buddhism, Hinduism, Hermeticism, and other religions/beliefs, a human being breaks from the cycle of birth and death once he/she attains enlightenment....How is it ever possible for its existence to depend upon whether I reach enlightenment ... if I become enlightened, after the death .... does it mean that my "future" incarnation, which exists Now in some other dimension, would stop existing after I become enlightened?"

These religions are simply organized sets of beliefs. They are all valid in and of themselves; however, they will only affect your personal reality if you choose to adopt them individually or as a whole. That is your choice. By accepting these ideas as your own, they will become, for you, what Bashar calls a "permission slip". You will be giving yourself permission to leave this cycle of reincarnation provided you reach some undefined state of enlightenment which will likely require a massive amount of commitment on your part in this life or the next, or the next, or the next..... Personally, I'd suggest learning what you can from present day teachers such as Seth, (Jane Roberts) Basher, (Daryl Anke) and Abraham (Esther Hicks).

• "Energy essence personality" is how Seth defines us. (From "Seth Speaks" which can be downloaded in PDF from
  http://spiritualdocumentaryvideos.blogspot.com/2013/09/the-seth-material-seth-books-pdf.html