The features of your behavior are typically assigned to human traits. Though the individual examples you give have somewhat universal recognition, consider the cute little wild squirrel during a local rabies outbreak. I am a country boy, and to have seen children fleeing in panic from a squirrel at the edge of a forest is abrupt gestalt to say the least. From your examples, there is the possibility that in the near future, feline leukemia could mutate to affect humans. Should that ever happen, your example of warm fuzzy thoughts of kittens would be looked upon at as psychotic or at least delusional, and if you wished to avoid infecting yourself & those around you, certainly not spiritual.
Which makes my point. It is not possible for you as an individual to embrace hope without God. That is to say, the thing you call hope is by intent a small cry from what is available to me: it isn't just about God, but also the human condition, sited by you above as spirituality. No.
Without that hope, your capacity to be human is diminished, not because God dictates it, but because does man in the infinite manners of slight and demeanor - formed, encouraged and compounded to diminish all who pause for a moment to think.
Spirituality is an investigation of what lay above the human realm. To see humanity with a past and a future that can use strengths greater than ourselves to uphold truth in the darkest hour, when it will kill us to speak, and to breathe deep.
While you example worldly concepts and hold them up as spiritual, there is an entire realm of perception behind a door in your mind. You have the right and privilege to open the door a bit or not touch it at all.
Consider resisting the human temptation to peek through the keyhole.
"Open it up,
Open, Open,
Baby,
Open that Door"
-Grace Slick