Hi Vivien,
Here is an exercise for you. Please repeat this several times before replying.
Think of something that makes you happy.
Is there a Dave creating that emotion?
Is there a thought creating that emotion?
Or an image creating it?
What is creating it?
On the first occasion, I thought of something as simple as the happiness I feel when I see a dog being curious or playful. There is no reliance on the existence of a 'Dave' to feel this emotion. It is more natural than that. I see the thing that makes me happy and the response to it is instant and spontaneous without any thought. I'm sure this happiness is also a learned habit (some people fear dogs for instance), but for me that happiness comes very naturally and without thinking. From this, it's clear that there is no thought shaping it. Neither is it an image as such, though it is the visual stimulus of a real thing, so it can be likened to an image.
What is really creating it though is the actually sight and experience of being in the presence of a dog.
Another thing I thought of that made me happy was the feeling of achievement I had today after completing a long and difficult assignment for a course I'm currently doing. This required no 'Dave,' thought or image, but came as the result of a senses of achievement and satisfaction at having completed a task. The thing creating this happiness was the result of physical, mental and creative processes, though the more immediate happiness came from having to do no more work for the rest of the evening. Some of these things seemed nested with the processes of thought (the mental and creative processes for instance), but also came from the tangible physical experiences of working with my hands and eyes.
The final thing I thought of was the sensation of being outdoors in nature in warm sunshine. This is probably the most obviously physical of the examples I've used, as the resulting thoughts featured feeling the warmth on my skin, hearing the sounds of birds singing, smelling the fresh air and grass and seeing the increased physical beauty of the landscape. No 'Dave' was needed, no thoughts were required, and the only image was that experienced through the eyes. The cause of this happiness was the pleasure felt by the light and heat of the sun.
Is there a Dave feeling happy?
Not really. There is no awareness of such an identity, with it becoming altogether lost in the immediacy of the experiences of happiness.
Did the experience of happiness last, or some other feeling came up after some time?
How did this change happen, did you choose another thought to make the happiness change to something else?
None of the examples here lasted, and none of them were deliberately replaced by a subsequent thought. The moment either passed, some other stimulus came which was less pleasurable, or, more often or not, once out of sight or beyond the other senses, the stimuli for my happiness merely became forgotten over the passage of time.
Dave