We "Only Live Once", so
....we should have as much fun as we can
... we should do whatever makes us happy
... we should not care what happens to ourselves or to others
... we should try to get the most out of life
... we should live like there's no tomorrow
Throw this insipid slogan out the window, close the window, and draw the blinds closed.
You live more than once. In fact, you have lived many thousands of lives, accumulating millions of years of experience along the way.
And when we say "you" we mean "you" as the current and most recent personality to inhabit your microcosm. Your microcosm is the eternal life-system that generates the temporary physical personality. For each new life, a new personality is created.
The purpose of each new personality is to liberate the microcosm from its separated existence and reunite the entire life-system with the Universal Spirit. This is the mission that is entrusted to every new personality that incarnates on Earth. If the personality does not accomplish the mission during its lifetime, it will be dissolved and a new personality will be generated by the microcosm in approximately 1,000 years to make a fresh attempt at Liberation.
This new personality will not be "you" as you know yourself to be now. It will be a completely different personality, perhaps male, perhaps female. The memory of yout experiences will be stored in the microcosm and will become a part of that new personality's subconscious life. Nothing of the "you" that is reading this post today will remain to return for the next life generated by your micrcosm.
Unless...
Unless you are able to find the true Path of Return in this life and walk this Path with diligence in this life. Detach yourself from duality and discard the illusion of separateness, the heresy that says you are separate from all other human beings. If you can open your heart and expose your Spirit-spark to the Divine radiations emanating from the Universal Spirit, then you will be granted the power to walk this Path. In doing so, you will attain a necessary purification that will lead to a transformation of the ethers that compose your physical, etheric, astral and mental bodies. This transformation will open the way for the birth of a new Soul vehicle that will have the ability to reconnect with Spirit and transform you into a Divine human being.
But you will have to do the work. You will have to obtain the necessary insight and make a fundamental reversal in your way of living. If you can do these things, then when death (so-called) comes knocking, you will not be dissolved into nothingness but will live on to complete the transformation in a sphere of Life reserved for all those who sincerely walk the Path of Return during physical life.
So, to say that we "only live once" and to then live recklessly is an incredible stupidity born out of ignorance of the Truth.
The human being is twofold, As physical beings, we are temporary. But our microcosm and the Spirit-spark at its center are eternal.
The task of the temporary human-being (you) is to awaken the sleeping eternal Soul principle (the Spirit-spark) and reconnect with the Divine Universal Spirit (God).
As given to us by Hermes Trismegistus:
"See, my son, this is the guide on the Way that leads to Freedom: you must give up your Body before it dies and overcome the Life of Conflict. Then, if you have won that victory, you will return to the Highest"
~g