This argument is hopelessly flawed.
When you make the statement "I feel love", you are making a statement about how you subjectively feel (assuming you are not lying). You cannot be mistaken. If you think that you are feeling this emotion, then you necessarily must be feeling it.
When you make the statement "I am in pain" (again assuming you are not lying), then you genuinely are in pain. You cannot be mistaken about this.
When you make the statement "I am in pain, so someone must have shot me in the foot", there are many ways in which you could be wrong; maybe you were stabbed in the foot, maybe you stood on a nail, maybe you are a hypochondriac experiencing phantom pains. You [i]can[i/] be incorrect about the cause of a subjective experience, just not the existence of the subjective experience.
When you make the statement "I feel that god exists" you are not incorrect about reporting that you feel "spiritual", but just because you must be correct about the existence of this 'spiritual feeling' does not mean that you are correct about the cause of this feeling (in this case apparently the existence of god).
Therefore love is different to god.
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