Life is to be lived. I follow a simple rule set; Live life to be happy as we have an intrinsic right to follow whatever path makes us happy. This right is requisite on respecting the same right in all others, if something that makes you 'happy' (or not unhappy) depends on requesting or making a direct action that violates another, your right for this circumstance is revoked.
Thus an example Mr. X dislikes gays, he says gays shouldn't be gay, Homosexuals however, who live this lifestyle are not taking a direct action against Mr.X's "right to be happy" but he is requesting such an action against them, this this circumstance is not within his rights.
Billy would be happy beating up younger kids at school, however this would directly effect their wish to be unmolested, while their wish to be unmolested is not focused on denying billy his right to be happy by kicking them around, thus billy is relieved of his right to pursue happiness in this.
All applications I can think of are pretty straight forward and valid applications of this idea.
So what does life mean to me? Live to be happy, be happy to live. Simple logic. I have no problem with those who wish to factor religion, are your right, or whatever you wish, it is your right.. but remember everyone has the same rights you do, to deny them this, negates your own...