The Watchtower society certainly has its definition of 'spirituality' that would not be recognised outside of the organization. Personally, I met very few what I would term 'spiritual' elders. Most of their conversations used to center round the latest auto they had bought or the latest soccer game. It used to frustrate me no end.
I do think there is such a thing as spirituality; a sense that there is something outside of our physical needs and desires. It is what makes us human and gives rise to the greatest humanartistic and intellectual achievements.
I only hope that I can find the inner peace and calmness that comes with finding that spirituality before my time comes to die. This is probably why I like the ideas of Budhism at the moment.